After how many days the test shows a positive result. On what day after conception the test will show pregnancy

Women who dream of becoming mothers are looking forward to the moment when they can see the "striped" test. The agonizing wait for a “late” period seems like an eternity, so they use a pregnancy test even before the delay. After all, manufacturers of highly sensitive devices assure that it is quite possible to “detect” the long-awaited conception at such an early date. How true these statements are and why expensive and reliable tests are still wrong, we will tell in our article.

Devices for diagnosing pregnancy have become so widespread and popular that manufacturers are constantly improving them, making them more convenient, practical and more sensitive. The last criterion, according to them, is the most important, since it is thanks to him that conception can be detected at the earliest possible date.

Thanks to a variety of forms, a woman can take a pregnancy test wherever she wants, and when she pleases. Nevertheless, regardless of the price and type of devices, all tests that determine pregnancy work according to a single method: human chorionic gonadotropin is isolated from other hormones in a woman's urine. It would be more correct to say its quantity. After all, this hormone is always present in the body of men and women, but in extremely low concentrations.

At the moment when the process of implantation into the wall of the uterus of the future embryo occurs, a rapid increase in hCG begins. Every day after conception, the amount of the hormone becomes twice as much. It is produced by the shell that covers the fetal egg, which in a few weeks will become the placenta of the fetus.

The first day after conception, the "sign" hormone can only be detected in the blood. In other biological fluids, its amount is minimal. However, the closer the time of the menstrual cycle approaches, the more the hormone will accumulate in the urine. When its amount reaches 10 IU, especially sensitive specimens will be able to "calculate" pregnancy. The table below reflects the amount of hCG in the blood. The level is a little off.

What day to take a pregnancy test

It would seem that everything is very clear, and sensitive tests will determine the presence of pregnancy already on the seventh day after fertilization. However, in practice, things are not so clear cut. The fact is that the time to reach the concentration of hCG in the urine of the desired level in all women will be different. It depends on the following factors:

• The duration of the menstrual cycle;
• Day of ovulation;
• The day when fertilization occurred;
• Physiological characteristics of women.

Moreover, you need to know that a positive result of a highly sensitive test may be the result of a biochemical pregnancy. In this case, the positive result of the diagnostic device does not deceive the woman: the conception really happened. However, for some reason, the pregnancy stopped developing, which was reflected in the onset of menstruation.

Express tests with a high degree of probability will calculate the true state of affairs 2 weeks after the conception has taken place. And gynecologists agree that home diagnostics should not be carried out earlier than 2-3 days after the expected menstruation is delayed. Then the possibility of an erroneous test result is minimal, since the level of hCG will already reach the desired level in any woman.

Nevertheless, numerous reviews of women who found out about their pregnancy before the start of the delay “drive” ladies dreaming of a child to purchase expensive tests that promise to show conception as early as possible. How true are these statements? Can a test show pregnancy before a delay and when should diagnostics be started? We will understand the causes of hormonal changes in the expectant mother after conception, as well as how the test recognizes them.

Will the test show pregnancy before the delay

The fact that a positive true test result before a delay in menstruation is possible is evidenced by numerous life examples, which we have no reason not to trust. Women claim that they intuitively felt the onset of conception or were guided by the physiological signs of pregnancy when they decided on such an early diagnosis.

Regardless of your reasons for early conception detection, the test can indeed be done before the delay begins. Considering that devices cannot harm a woman in any way, they can be used at least every day. But in order for their result to be true, you must adhere to the following rules:

• Before the delay, it is recommended to use only highly sensitive tests that can already determine 10 IU of hCG in the urine (the smaller the number on the package, the more sensitive the device);
• Diagnosis should be carried out in the morning: at this time, the concentration of the hormone in the urine is maximum;
• The results of the first study cannot be considered reliable, they must be confirmed by re-diagnosis.

In the event that a long delay is accompanied by a negative test result, you need to contact a gynecologist to find out the reasons. This situation is typical for inflammatory processes in the reproductive system or hormonal failure.

5-6 days after conception

Is it possible to find out about pregnancy 5 days after fertilization or even earlier? Definitely not.

Everyone knows that fertilization can occur only during the period of ovulation. After it takes place, the egg begins its journey through the tubes, slowly approaching the walls of the uterus. There, the future embryo is securely attached. But this event will occur no earlier than 5 days after conception. Usually, implantation occurs on the 7th day, and sometimes on the 10th.

Only after the egg is securely "introduced" into the uterine cavity, its shell begins to produce hCG. Since the concentration of the hormone increases once every two days, simple calculations lead to the fact that tests can detect pregnancy only on the 20th day of the cycle.

So, on the 5-6th day after conception, it is pointless to do a pregnancy test.

7-8 days after conception

It is also not worth using the test a week after conception. After all, the process of migration and implantation of the egg lasts an average of 7 days. Consequently, the shell of the egg will begin to produce the desired hormone only on the 8th day after ovulation.

Pregnancy a week after conception cannot be determined. This time is the beginning of the production of hCG, and its amount is still minimal.

9-10 days after conception

10 days after conception - the period of the beginning of the active production of hCG. Let us assume that implantation occurred a week after fertilization. So, on the 7th day, the hCG level is 2 IU.

Let's start some simple calculations. Every day, the concentration of the hormone doubles. This means that by day 10 it will be only 8 IU. No pregnancy test yet recognizes.

11-12 days after conception

Simple examples, in which every day after conception is multiplied by two, allow us to determine that tests can only calculate pregnancy on the 11th day after ovulation. However, these data are not absolute. After all, it is impossible to say with accuracy when the journey of the egg ended with the introduction into the uterine cavity. So, if implantation occurred on the 10th day after ovulation, then the test will calculate the pregnancy only on the 25th day of the cycle.

Accordingly, the less days left before the start of the menstrual cycle, the more likely it is to see a striped test. Moreover, the majority of women who found out about their conception before the "term" say that this happened 5 days before menstruation. 4 days before the delay, the ghost strip looked much brighter.

See feedback on early diagnosis.

1-2 days before period

It would seem that 2 days before menstruation, the exact result, provided that a highly sensitive test is used, is guaranteed. However, even in this case, the diagnosis may be false. This is all due to the same reasons that we mentioned above: the individual characteristics of the cycle and the time of ovulation.

If late ovulation occurred or the egg “traveled” through the tubes for a long time, the day before the expected menstruation, the device will not respond to the hCG level, because it is still too low.

Let's summarize.

You can use a pregnancy test before your period. But the sooner you start using it, the greater the chance of error.

What tests are used before the delay

Despite the fact that many experts agree that the marks on the packages of devices in 10-15 IU are nothing more than a publicity stunt, it is better to choose tests with high sensitivity for early pregnancy diagnosis.

Pay attention to the sensitivity level indicated on the package

You can do a pregnancy test before the delay and 7-8 days after ovulation, as the manufacturers advise. However, it must be clearly understood that the reliability of such a diagnosis is highly questionable. Modern pharmacy chains are filled with diagnostic tools of different price categories and types. It is impossible to give unequivocal advice: every woman has her own proven “favorite”, which she considers better than others.

Many ladies opt for inkjet pregnancy tests before the delay. Given their ease of use and the ability to diagnose in almost any environment, this choice is fully justified. However, their cost is quite high, so not every woman can afford such devices. It is worth noting that ordinary strips impregnated with a highly sensitive reagent most often have a more affordable price. And given that you will need several of the earliest pregnancy tests, it is better to choose the cheaper option.

If the financial condition allows you to purchase expensive devices, but you don’t want to buy the entire pharmacy in the hope that the tenth test will be striped, it’s better to pass it. This diagnostic method never shows false results.

Other early signs of pregnancy

In those days when tests for determining pregnancy did not yet exist, women managed to determine their "interesting position" by the signals of their body. Their experience can be used by modern ladies. However, even in this case, it is impossible to talk about a standard set of physical sensations: each woman has her own. Even several pregnancies in one mother can proceed in different ways. Here are some of the most common signs that indicate that conception has occurred:

• Enlargement, soreness and special sensitivity of the breast;
• Slight dark discharge from the vagina during implantation of the egg in the uterine cavity;
• Drowsiness;
• Sudden mood swings;
• Decreased blood pressure;
• Symptoms characteristic of a cold;
• Drawing pains in the lower abdomen;
• short diarrhea;
• Changes in taste: desire for unfamiliar food.

Despite the fact that there are many characteristic symptoms indicating the onset of pregnancy, some women do not notice any changes in their body at all.

It is quite natural that a woman dreaming of a child is in a hurry to find out whether conception has happened or not. She buys one pregnancy test after another and gets very upset if they show only one line. But the answer can be negative even when the pregnancy did occur, but very little time has passed. In this regard, the question will be appropriate: when, after the alleged conception, should I take a pregnancy test? The best option is on the 5th day of delay.

How the test works

It would be wrong to try to find out immediately after sexual intercourse whether conception has taken place or not. Why? The principle of the test will help answer this question.

A typical pregnancy test is a strip with two marks. They are impregnated with a special substance. If you put urine on them, the marks become visible. If there is no pregnancy, only one strip is visible, and if it has come, two. The first strip is the control. It shows that the test result is valid, that the fixture has not deteriorated during storage.

The second strip contains a reagent that reacts with the hCG hormone (human chorionic gonadotropin, a hormone secreted by the chorion, that is, the placenta). As a result of this reaction, the mark is colored.

The hormone is always present in the female body, only in very small quantities. After the embryo takes its place in the uterine cavity, the content of the hormone in the blood (and urine) increases every day. It reaches its maximum value after about 2-3 months. In the middle of the term, it becomes less, until the very birth, its level does not increase.

But there are cases when there is a lot of hCG in the blood, but there is no pregnancy:

1. I recently had an abortion.
2. A woman uses special hormonal drugs to treat her diseases.

Sometimes the opposite situation happens - a woman is pregnant, and the amount of the desired hormone does not increase.

What does it say:

• The fetus is frozen.
• There was a threat of miscarriage.
• The embryo has implanted outside the uterus.

Wanting to know whether conception has occurred or not, one important factor must be taken into account. A fertilized egg enters the uterus and is fixed in it until about 13 days after conception. This explains why the test results are so different. Some girls do tests before the delay and see 2 strips. And someone gets a negative result even after menstruation has not come.

So when can you take a pregnancy test after intercourse? Approximately 5 days late.

At a time when the embryo is just fixed in the uterus (about a week after intercourse), the level of pregnancy hormone in the mother's body is very low. However, it is growing every day, and a few days after the delay it will be displayed on the test.

It is worth remembering that each woman's hCG grows at a different rate. If the conception and fixation of a fertilized egg occurred about 12 days after ovulation, two strips on the test can be expected at least 2 weeks later.

Innovations in determining pregnancy

If fertilization has occurred, by the expected start of menstruation, the hCG level will rise to 100 units (mIU / ml). It's in the blood. In urine, it will be exactly half as much. Now on sale you can find highly sensitive products that already react to 10 mIU / ml. They can be done even before the delay occurs.

The most accurate of them make it possible to see the pregnancy a few days after the fetal egg enters the uterus. The result is 99.9% correct.

Whatever test a woman uses, it must be done again. Repeating the procedure after 3 days will make it possible to verify the results.

A Few Rules

A pregnancy test must be done, remembering a few rules:

1. Most hCG in the urine in the morning. If for some reason it was not possible to fulfill this rule, you can do the procedure at any other time. However, before that, it is recommended not to go to the toilet for several hours.
2. Those who want to know about pregnancy before the delay can do several tests at once. It is desirable that they be from different manufacturers.
3. There is much more hCG in the blood. Therefore, if there are 2 strips, a blood test must be done to confirm the results.
4. The ideal option is to check about 1 month after the expected date of conception. At that moment, the level of the hormone will be almost maximum. Both one and the other strips will be bright and clear.
5. Pregnancy with twins and a large number of children is determined somewhat earlier, since in such a situation the amount of the hormone is greater.

Do not take a pregnancy test in the first few days after conception. It will take up to 2 weeks for the embryo to get into the uterus and gain a foothold there. It is then that the level of the pregnancy hormone, hCG, will begin to rise in the woman’s body. You can get more or less reliable results on the 5th day of delay. But it is better to check even later, when hCG reaches almost the maximum mark.

Whether or not pregnancy has occurred is a question that is equally exciting for both those who sincerely desire this event and those for whom it is extremely undesirable. And of course, everyone would like to know everything immediately after unprotected contact, or at least after a few days. But unfortunately, to date, medical science has not yet reached a level that allows such a quick diagnosis of pregnancy. You can reliably say about its onset at least a week later.

After how many days it is possible to ascertain the fact of pregnancy

To name the time frame in which it is possible to reliably establish the onset of pregnancy, starting only from the date of unprotected sexual contact, is quite difficult, if not impossible. The thing is that the defining moment here is rather not the date of the act, but the date of ovulation. Consequential contact can occur both before and after the ovulation period.

Ovulation is the process of the release of the egg from the follicle to move into the cavity of the fallopian tube, where it will meet with spermatozoa (fertilization). The fertile period is the time before and after ovulation, during which sexual contact can lead to pregnancy.

Thus, in whatever period of the cycle an unprotected contact occurs, it is necessary to start from the moment of ovulation.
Ovulation is the main point to focus on when planning the timing of pregnancy testing.

And it is from this date that the minimum number of days necessary for the appearance of the first signs should be counted. And here, of course, most women have a question - when was she, this very ovulation?

How to determine ovulation and fertile period

Those who consciously plan pregnancy for some time (for at least several cycles), of course, can approximately determine the time of ovulation using one of the several existing methods. By the way, none of the methods makes it possible to do this with an accuracy of several hours or even one day. The most convenient methods to date are as follows:

1. Calendar method - in the presence of a more or less stable cycle, the day of ovulation can be calculated by adding 14 days to its first day.
2. Methods for determining the fertile period by external signs - by discharge, by pain in the lower abdomen, by changes in mood and libido, etc.
3. A method for determining the moment of ovulation by measuring basal temperature.
4. Application of special tests.
5. Folliculometry - determining the approximate time of ovulation by ultrasound - is carried out several (about 5 ultrasound studies).

It is important to understand that the most accurate moment of ovulation can be determined only by constantly monitoring the cycle for at least a few months. Often the fact that “it was her” becomes clear after the fact, sometimes even at the end of the cycle.
Fertile period - the time before and after ovulation when conception is possible

The boundaries of the fertile period directly depend on the moment of ovulation, and, in addition, on the individual characteristics of both women and men. And this means that here the time frame is just as vague - on average it is:

• 2-4 days before ovulation - it all depends on the "survivability" of the sperm of a particular man and the environment in the body of a particular woman;
• 1-2 days after ovulation - it all depends on the quality of a particular egg.

Fertilization follows ovulation. However, these two events are separated by a certain time interval - even a high-level specialist cannot establish it. It all depends on the specific situation. The terms of fertilization are limited only by the life of the egg outside the ovary - up to two days.

Thus, counting the days from the moment of contact, if it occurred before the 14th day of the cycle (or before ovulation, if it was set on purpose), several days should be added. If the contact occurred a little later, you can start "testing" earlier.

In order to more or less accurately answer the question, or take into account the signs of an "interesting" situation, one should identify for oneself all the stages that a woman's body must go through in the initial stages of pregnancy.

Stages of conception and the appearance of the first changes

The embryo goes through the first stages of conception for the most part without communication with the mother's body - it moves through the pipes to the place of fixation, travels through the uterus, and gradually penetrates into the endometrium (the inner layer of the uterus). All this takes from 3 to 4 days, calculated from the moment of fertilization.
While the fertilized egg moves through the fallopian tube, it does not transmit any signals to the mother's body, which means it is impossible to determine pregnancy.

Already in these first days, he secretes into the mother's body certain special substances that are inherent only in nascent life. However, to date, medical science has not invented a means of testing for pregnancy at this stage that is accessible to the layman (and even to most medical institutions in our country). By the way, such a remedy would not be entirely advisable: it was at this time that a pregnancy that had already begun to emerge is at the greatest risk. Due to genetic "breakdowns", other imperfections, the unpreparedness of the mother's body, simply by an unfortunate coincidence, the pregnancy may not be preserved, not consolidated, "self-destruct". And, having determined the presence of pregnancy, at such a period, there is a high (up to 50%) risk of getting the opposite result in the end.

Not every unprotected sexual intercourse on fertile days can result in a pregnancy. And this is absolutely normal - after all, the presence of the most healthy organisms of a woman and a man does not reduce the number of difficult stages that a pregnancy must go through in the first two weeks of its existence.

The first changes that can be "seen" with the help of modern medical means occur in a woman's body approximately 4-6 days after fertilization, when the embryo begins to penetrate the uterine wall. At this stage, it is still invisible to ultrasound (it sinks into the endometrium, like into loose soil), but a special hormone, hCG, is already beginning to enter the woman's body. It is the appearance of this substance in the blood, and then in the urine of a woman, as well as a constant increase in its amount, that makes it possible to determine a developing pregnancy.
After the embryo "introduced" into the wall of the uterus, it begins to secrete a specific hormone into the mother's body - hCG

It should be noted that a blood test for hCG - the earliest method for diagnosing an "interesting" situation - can show its minimum rise (above 5 IU / ml) on the very day when it begins to enter the bloodstream. A home pregnancy test that determines the level of the same substance in the urine will show pregnancy much later for two reasons:

1. The hormone enters the urine in the same concentration as the blood, only a day later.
2. The tests have a relatively low sensitivity - even the most sensitive of them (10 IU / ml) will not even show an increase in hCG, for example, by 6 units, which already indicates pregnancy. Therefore, it is recommended to do the test no earlier than 10 days, having tuned in advance that a negative result may be unreliable.

Less accurate and more subjective methods for determining pregnancy (external signs, basal temperature chart) for a period of 4–6 days from conception are extremely uninformative.

Thus, starting from the date of unprotected contact (provided that it was made during the fertile period), at least 6-8 days should be counted before the date of determining pregnancy through a blood test for hCG. However, it should be understood that the negative result obtained at this stage does not at all give a 100% guarantee of the absence of pregnancy. A positive result should be confirmed by re-testing after a few days (within 2 days, the amount of the hormone increases by about 2 times).

Example. Anastasia has a monthly cycle of 28 days. This suggests that she ovulates on the 14th day of the cycle, and the fertile period lasts from 10–12 days to 15–16 days. Anastasia had unprotected sexual intercourse on the 11th day of her cycle. By conducting folliculometry (ultrasound studies), it was found that ovulation presumably occurred on the 15th day of the cycle. Adding 7 days to the date of the alleged ovulation, Anastasia passed a blood test for hCG on the 22nd day of the cycle. The analysis showed the presence of hCG in the blood (7.57 IU / ml). A home pregnancy test taken the same day was negative. A day later (on day 24), the analysis showed 15.87 IU / ml, which indicates a developing pregnancy, but the test also showed no pregnancy. A weak second band appeared on the test only on the 26th day of the cycle, when the concentration of the hormone in the urine presumably reached the same level as in the blood on the 24th day. The first signs of pregnancy in Anastasia appeared only with a delay in menstruation - on the 30th day. Ultrasound showed the presence of a fetal egg in the uterus on the 7th day of delay.

Medical diagnostic methods

All three medical methods of early diagnosis listed above constitute an exhaustive list of them at the minimum stages of pregnancy, before the delay of menstruation. So, from about 7-8 days after the alleged ovulation, 9-10 - after sexual intercourse, you can start the following studies in the following order:

1. Blood test for Beta hCG. As noted, this is the "earliest" test for the expectant mother. At the same time, a false negative or doubtful result is practically excluded here. Nevertheless, earlier than 7 days after ovulation, it does not make sense to carry it out. To date, such an analysis is offered by many private laboratories and some public medical institutions for a fee. The terms for issuing results, as a rule, are the shortest - from several hours to one day. Evaluating the results is quite simple: hCG values ​​above 5 mU / ml indicate the presence of pregnancy.
   Blood test for hCG gives the earliest results
2. Tests for home determination of "interesting" position. They should be done at least two days later - on the 9th or 10th day after the expected ovulation. The results should be treated with awareness of the high possibility of a false negative verdict. For early testing, it is better to choose highly sensitive and expensive tests from trusted companies (BB-test, Evitest, Frautest). On average, the sensitivity of tests ranges from 20 to 25 mU / ml, those that have this indicator in the region of 10 mU / ml are especially sensitive. Assessing the test result, it should be understood that even the weakest second strip means pregnancy. After a few days, the test can be repeated - the strip will become brighter, which means that the pregnancy is developing.
   Even a barely visible second line on the test means pregnancy
3. Ultrasound examination. An ultrasound specialist can reliably answer the question of the existence of pregnancy only when he sees a fetal egg in the uterus. Unfortunately, even with the most high-tech equipment, it is very difficult to ascertain pregnancy by ultrasound before the delay of menstruation. The average time to detect signs of an "interesting" position on ultrasound is 1–1.5 weeks of delay.
   You can see the fetal egg on ultrasound only after a delay in menstruation

Gynecologists recommend not to test for pregnancy by any of the methods before the delay of menstruation. In a sense, this advice is justified: if you do a test or analysis after a delay, you can count on a more accurate result, in 80% of cases there is no longer a false negative result at this time. In addition, in the early stages, a "failure" of pregnancy or the so-called biochemical pregnancy, which it is better for a woman not to know, is not ruled out.

Inspection atthe gynecologist will not show pregnancy before the delay of menstruation and even some time after. In addition, the examination may cause bleeding. Therefore, with a trip to the doctor in this situation, it is better to wait.

Basal temperature as a "near-medical" method

The basal temperature charting technique is more of a way to determine ovulation. However and it will help to indirectly confirm or deny the presence of pregnancy. In order to see the signs on the chart, you need to have some own experience in its maintenance (at least a few months for comparison). Signs of pregnancy on the chart can be:

• "implantation retraction" - a sharp decrease and a rapid rise in temperature in the region of 8-10 days after ovulation (by the way, at the same time, scanty blood discharge may appear and disappear - "implantation bleeding", this can become a more weighty argument in favor of the onset of pregnancy );
• persistent growth or simply no decrease in temperature a couple of days before the date of the expected critical days.

As you can see, the graph is not too early and not entirely reliable way to determine the "interesting" position. However, for those who constantly use this technique, it can be a valuable indirect indicator of a particular result.
Temperature chart during pregnancy does not show temperature drop at the end of the cycle

Definition of pregnancy by signs

Medicine today does not consider the signs of pregnancy, appearing and delays, as proof of the fact of its onset. However, practice sometimes proves otherwise. We only note that all the signs are very subjective and ambiguous, and in any case their appearance is possible only after the fetal egg is fixed in the uterine cavity - that is, not earlier than 7-8 days counted from ovulation.

Among the early signs of an "interesting" situation, the following are most often called:

• engorgement of the mammary glands, their soreness - a sign can also appear in the usual, “non-pregnant” cycle, however, you should be wary if this has never happened before;
• pulling pains in the lower abdomen - a very ambiguous sign, this often happens before the impending end of the cycle;
• unusual discharge - more abundant, more yellow (may be associated with some disease or simply a change in hormonal levels);
• frequent urination - associated with an increase in the uterus, but this may well be without pregnancy in the second half of the cycle;
• drowsiness (deeper sleep), early awakening - associated with hormonal changes in the second phase;
• an increase or, conversely, a decrease in sexual desire is associated with hormonal changes, and may be the result of both pregnancy and the usual second part of the cycle.
• nausea, change in taste preferences - before the delay may be a placebo effect, more often appears after the delay.

The listed signs cannot be divided into reliable or indirect - each of them is equally ambiguous (it can mean both upcoming menstruation and pregnancy). Most often, they are the result of an increase in the hormone progesterone in the blood, and it rises both in the second half of the cycle (before menstruation) and during pregnancy. In addition, as practice shows, the discovery of one or another sign can be the result of a woman’s excessive “fixation” on their search, associated with a great desire or, conversely, unwillingness to become pregnant.
Most of the signs of PMS are consistent with those of early pregnancy.

Video - the doctor talks about the signs of pregnancy

Folk ways

Despite the fact that folk methods for determining an “interesting” position have long been replaced by the latest medical research, many women still trust the old proven methods. Most often, this is justified by the desire to find out about your condition as early as possible. We only note that not all folk methods are based on medical facts and anatomical features of pregnancy.

Of course, the process of pregnancy is exciting for every woman. But a lot of stress is brought by the first weeks of waiting and the constant question: am I pregnant or not.

In each cycle, a woman has only 6 days to become pregnant: 5 days before ovulation and 2 days after it. So how do you know when you can already determine your pregnancy? What methods of determination are available and are effective? I am often asked such questions in the comments on the site, so I will tell you in detail.

Even if you are sure that in this cycle you determined the ovulation period and did everything to fertilize the egg, this does not mean that a couple of days after the intended conception you need to go to the pharmacy for a test and the next day to the gynecologist with complaints of infertility. You can detect pregnancy after starting the secretion of hCG (human chorionic gonadotropin), and this launch does not occur before the egg is fixed to the uterine wall.

How many days after PA can I take a pregnancy test

There are 2 types of tests that will help determine whether it is worth starting preparations for the arrival of a new family member.

Blood test

This method will help to quickly determine the presence of pregnancy.

positive moment: You can donate blood as early as 7-12 days after the intended conception.

negative moment: testing takes about a day (the timing of the result varies, depending on the laboratory).

Usually, qualitative and quantitative hCG is determined: the first will show the presence of this hormone in general, and the second indicator will indicate the exact figure for determining the period.

In general, if you are pregnant, a blood test will show a positive result 3-4 days after direct implantation or 9-10 days after fertilization and ovulation.

Analysis of urine

This test is easy to use and shows the result in 5 minutes. This is definitely a huge plus.

The disadvantage of such tests is that they will not always show you a reliable result. Manufacturers claim that the test can be performed 24-48 hours before the delay. But in fact, no more than 25% of pregnant women who took the test 2 days before the start of the expected menstruation received 2 strips on it. Under the same conditions, 1 day before the delay, already 40% of expectant mothers confirmed their position with the help of such a test. However, this number is still quite low. It turns out that women received false information and could rely on its result.

On average, most women get a second line on their test about 2 weeks (day 13-14) after ovulation. Those. just on the day of delay.

IMPORTANT! Despite the research, there are cases that the test shows a positive result only 3 weeks after ovulation. We indicate this data for the reason that often the result on the day of the delay is negative and the woman is 100% sure of this, but it is necessary to double-check or donate blood for hCG.

Do tests always show the correct result?

Manufacturers indicate on the packaging of a home pregnancy test an efficiency of 99%. But this is far from true. All studies that confirm this figure were carried out 3 weeks after ovulation, i.e. 7 days after delay. But in the early stages, the test often shows one strip, which confuses the expectant mother.

You can find out the reasons why the most common test may turn out to be false positive in.

What are the reasons for a false negative test?:

• test taken too early
• the test has expired;
• you do not follow the instructions for use;
• you are not using morning urine.

What Factors Affect Test Results

Implantation period. Although the test result depends on the presence of the pregnancy hormone (hCG), long implantation periods can lead to negative results, since it takes about 7 days for a fertilized egg to travel to the uterine wall. So if you test too early, be prepared to get a negative result.

HCG level in urine. The score may decrease if you drink too much liquid. In concentrated urine, the level of hCG is higher and the test result is accurate.

Sensitivity of a home pregnancy test. Read the test instructions and compare the sensitivity of several products of this type: the higher it is, the sooner and more accurately you will know the answer to your question.

Other methods for determining pregnancy

Basal temperature

Minuses: it is necessary to measure BBT within 3-4 cycles, to have a more or less stable menstrual cycle.

pros: if you measure BT for several days after the delay, then it will invariably be above the norm - this will most likely indicate the presence of pregnancy, but you must definitely take into account the "cons" of this method.

ultrasound

Minuses: in the first weeks of pregnancy, it makes no sense to use this study, an ultrasound specialist is unlikely to see a fetal egg, which is still very small; besides, I insist that it is impossible to disturb the embryo at the stage of formation, and this is done only according to the strict indications of the attending physician.

pros: you can be sure that you do not have an ectopic pregnancy, and the presence of a second strip on the test is not a consequence of hormonal disorders.

The article talks about when to take a pregnancy test after conception, after an HCG injection, after ovulation.

A woman dreaming of a child, each time with the approach of critical days, pays more and more attention to her well-being and listens to the signals of her body. And when she feels the usual pain in the lower back, the question arises: are all the attempts made again in vain?

But if suspicions of pregnancy creep in, then the first thought that visits a woman is the opportunity to quickly make sure that a miracle has happened.

• In other cases, an unplanned pregnancy can become a source of worries for a woman. The only way to calm down and lead a normal life is to know that suspicions are not justified.
• How to find out whether the tiny heart of another little man will beat soon or not? Do not wait two or three months, when the long-awaited phrase “you are pregnant” will be heard at the examination by the gynecologist! And if the appearance of a child is not included in the plans for the near future
• It is easy today to confirm or refute the birth of a new life inside with the help of a test. But when a test strip that makes life easier for ladies should be used

How many days after conception should pass in order to wait until the test strips are able to show the correct result? To find this out, one should understand what influences the appearance of two strips during testing.

A cardboard test strip with a special reagent changes color immediately after urine enters it due to an increased level of chorionic gonadotropin, which is secreted in the body of a pregnant woman.

Chorionic gonadotropin enters the bloodstream as soon as fertilization occurs. The pregnancy hormone in the female body appears within seven days after conception, but in small quantities.

An accurate test result is possible provided that its concentration is increased a thousand times. To do this, you must wait at least another fourteen days.

The egg is fertilized 1-2 days after sexual intercourse. How long does it take for sperm to reach the egg?

But the process does not end there. After fertilization has occurred, the female reproductive cell begins to move towards the uterus, which will last 6-7 days. Having reached the uterus, the egg will begin to penetrate into its walls. And only then the body begins to produce the hormone of pregnancy.

The limit of sensitivity of the test strip is reached after 10-14 days after fertilization, coinciding with the beginning of the cycle. Therefore, it is advisable to test at home after one day of delay.

Chorionic gonadotropin can begin to be produced with the development of certain diseases. Medications, in which one of the components is the pregnancy hormone, can also provoke the production of pregnancy hormone.

Today, there are inkjet tests on sale. They are more expensive than usual, and differ from them in high sensitivity. The inkjet test is able to show the correct result even before the delay. Four to five days before the expected critical days, the test will show two strips

The data on the package will help you find out the sensitivity of the test. The numbers and the growth plate show at what concentration of hCG the test strip is able to correctly reflect the result. Usually you can find out about pregnancy 14 days after fertilization using the test.

Studies confirm that only 16% of the tests offered by pharmacies can confirm pregnancy with a delay of one day.
Chorionic gonadotropin after fertilization is produced in the maximum amount only by 8-10 weeks of pregnancy. In the future, its number decreases.

Another feature associated with the amount of hCG is that it becomes more with multiple pregnancies. This means that with twins, triplets, the concentration of hCG increases.

If, after fertilization, the level of the hCG hormone is too low, then an ectopic pregnancy or a threatened miscarriage can be suspected. The test may indicate the absence of pregnancy with a delay. Re-testing will dispel doubts.

• when purchasing a test, it is recommended to find out its expiration date
• a test left over from the last test should not be used
• the test must be used strictly according to the instructions
• it is better to test after waking up, because in the morning the level of hormones is the highest

If the second strip is poorly defined, then we can talk about the onset of pregnancy. The next test is best done after a few days. Two strips repeatedly shown by the test confirm pregnancy

When to take a pregnancy test after an unprotected intercourse?

A highly sensitive strip test indicates pregnancy at the end of seven days of unprotected sex that is hypothetically fertile. By this time, the required level of hCG is reached.

Highly sensitive jet test will show pregnancy at hCG levels of 10 IU/L even in the absence of a delay

Medium-sensitive tests determine pregnancy at an hCG level of 20 - 25 IU / l. The specified level of gonadotropin in the urine, sufficient to obtain a reaction in the form of two strips on most conventional tests, is not reached until the third week of pregnancy, or 15-16 days after conception

A test with an average sensitivity (20 - 25 IU / l) will show the correct result 15-17 days after intercourse. By this time, if pregnancy is present, there is a delay in menstruation.

If sex was a couple of days before the date of the next menstruation, but there is a delay, then testing with an average sensitivity test should be carried out after 15 days from the date when there was sex. The estimated date of the onset of menstruation in this case is ignored.

Highly sensitive tests at 10 IU/l are used on the 7th day after sex. The estimated date of the beginning of the next menstruation is also not taken into account.

When should I take a pregnancy test after my period?

If critical days have come, but the woman continues to worry about the onset of pregnancy, or if spotting only resembles menstruation, then a positive test result is a reason to consult a gynecologist.

Allocations may indicate an ectopic pregnancy, the development of pathologies. Sometimes spotting speaks of the individual characteristics of a woman and is not a cause for concern.

A week after the intended conception, the optimal time for testing comes. But it is better to re-test in a few days. If the delay is 3-4 days, then even a regular test can show pregnancy.

When to take a pregnancy test after ovulation?

After the onset of ovulation, even a highly sensitive test is not able to show a positive result, because the production of hCG in the body has not yet begun. And only 7-10 days after the release of the egg from the ovary, its fertilization and fixation to the walls of the uterus, the process of producing the pregnancy hormone starts

You can determine pregnancy before ovulation by various signs. However, none of them is able to confirm pregnancy.

When to do a pregnancy test after IVF?

• After the IVF procedure, the test is recommended to be carried out in a clinic. The optimal time for this is 14 days. Having fixed to the wall of the uterus, the embryo immediately begins the production of the hormone gonadotropin. But with IVF, just detecting the pregnancy hormone is not enough.
• It will also be necessary to determine the number of fixed embryos and the place of attachment. All this is found out on ultrasound, which is prescribed on the seventh day after IVF. Repeated ultrasound is prescribed on the seventh day. Its purpose is to check the heartbeat and normal development of the embryo.
• Testing early can cause premature joy due to a false positive result. However, re-testing in the clinic in two weeks will bring disappointment along with a negative response.

Reasons for incorrect results:

• the embryo tries to gain a foothold in the uterus for the first seven days, but this never happened
• after ovulation is called, the injected hCG hormone remains in the woman's body. It shows false positive result.

In order not to be disappointed, you should wait for the due date after IVF and be tested only in the clinic

When to take a pregnancy test after hcg?

After an injection of hCG, ovulation occurs within a day. Doctors prescribe the necessary support for the ovaries, and also give recommendations regarding the number of sexual intercourses.

Testing is carried out depending on the cycle. The optimal period is seventeen days before the start of the next menstruation. For example, if the cycle is regular and is 28 days, then the test can be carried out after the eleventh day.

With a non-permanent cycle, the day of testing is determined by the shortest cycle in the previous six months

If during the ultrasound it is revealed that the follicle has reached the desired size (twenty mm), then testing can be done daily.

When to do a pregnancy test after duphaston and rotten?

After dufaston and rotten, testing should be carried out no earlier than 3-4 days of delay. The doctor should determine the optimal time for testing. Repeating the test after 3-4 days will eliminate doubts about the veracity of the result.

Video: how many weeks after intercourse can I take a pregnancy test?