VERIFIED CONTENTAuthor: Anna Jaworska, family doctor

When to do a pregnancy test? After how many days can a pregnancy test be done? Many women take a pregnancy test the day after intercourse, and some even hours after intimate intercourse. However, it doesn't make any sense. Then the pregnancy test won't show anything anyway. How long does it take to get a pregnancy test to give a reliable result? We advise when it is best to do a pregnancy test.

When to do a pregnancy test? After how many days can a pregnancy test be done?Many women - both those who are trying to have a baby and ladies who have had a surprise during an intimate intercourse - would like to know if they are pregnant immediately after intercourse.

However, does it make sense to take apregnancy testright after intercourse? After what time is the best time to do a pregnancy test?

When to do a pregnancy test? After how many days can a pregnancy test be done?

When can I get a pregnancy test?Unfortunately, there is no method that can detect a pregnancy within a few hours after intercourse. Waiting for a few days is necessary because it takes about 6 days for the fertilized egg to travel to the uterus, and then the embryo is implanted in the endometrium. Only after this event does the beta-hCG hormone appear in the blood and urine.

This usually occurs between the 8th and 10th days after conception.How long can yousodo a pregnancy test?Doing a pregnancy test makes sense not earlier than 8 days after intimate intercourse and ovulation.

  • Online pregnancy test

Therefore, on the packaging of pregnancy tests, it is even recommended to use them at the time of the expected menstruation, i.e. on average 14 days after the release of the egg. Before that, the test may be weakly positive (the second dash is barely visible), which is sometimes misinterpreted by women. So, to get a reliable result, it's best not to get carried away and take your time with the home test.

If you decide to take the test earlier, e.g. 6-7 days after intercourse, to be sure, it is better to repeat it a few days later, especially if the period does not appear on the expected date.

The pregnancy test measures the levels of the beta-hCG hormone

At the site of the release of the egg inthe ovary produces a gestational corpuscle. It produces progesterone - a hormone that prepares the uterine mucosa to receive a fertilized egg and enables its further development (from around the 12th week of pregnancy, its function is taken over by the placenta).

In turn, the trophoblast - the layer of cells in the embryo's membrane, which will form the placenta in the future - produces beta-hCG, and this hormone stimulates the corpus luteum to produce the aforementioned progesterone. Since the corpus luteum must produce progesterone until the placenta is produced from the trophoblast, and the demand for this hormone increases with the weeks of pregnancy, the concentration of beta-hCG also increases constantly.

Therefore, by monitoring the level of beta-hCG, you can assess the age of pregnancy and its course. Testing beta-hCG levels can also be used to identify imminent miscarriage.

It is also used in the prenatal diagnosis of fetal defects (in the triple test with alpha-phetoprotein and estriol).

When does the pregnancy test detect beta-hCG?

Beta-hCG can be detected as early as 9-11. day after fertilization. Its concentration increases, initially doubling every 2 or 3 days. It reaches its maximum between days 40 and 90 (weeks 8-12). Then it decreases.

The norms of beta-hCG concentration depending on the duration of pregnancy are quite broad, so it is difficult to follow them with watchmaking precision in assessing the baby's age. However, when the concentration of beta-hCG is too low or high, it should be worrying:

  • too low beta-hCG may indicate imminent miscarriage or ectopic pregnancy (the increase of beta-hCG is then much slower)
  • too high beta-hCG sometimes causes trophoblast cancer. However, since the norm is also exceeded in multiple pregnancies, it is better not to panic right away. You have to wait calmly and explain this issue with the doctor
  • a positive test result, despite the lack of pregnancy, is possible when: the woman takes antidepressants, is in the perimenopausal period, suffers from kidney or thyroid diseases

CHECK: How to do a pregnancy test?

Worth knowing

Frequently Asked Questions

Menstrual cycle: when to do a pregnancy test?

When is it too early for a pregnancy test?

Pregnancy test result 10 days after intercourse

When to do a pregnancy test in the laboratory?

A pregnancy test for hCG in the blood, performed in a laboratory, confirms a pregnancy with 100% certainty.It can be done one week after conception. By determining the concentration of the hormone can even be determinedapproximate age of pregnancy.

If the test is positive, the pregnancy should still be confirmed by a doctor. If, on the other hand, the test results are negative and your period is not coming, you should consult your doctor quickly. The reasons may be different, e.g. climate change, strong emotions, intense sports activities, but also an ectopic pregnancy.

Worth knowing

Toothpaste instead of a pregnancy test?

Some people argue that you can recognize pregnancy with toothpaste. It is enough to combine a little urine with toothpaste and wait for a reaction. The positive result in this case is a discoloration of the paste or the fact that it starts to foam. If nothing happens, the woman is not pregnant.

What does science say?

- Toothpaste's effervescence and foaming is the result of a chemical reaction between the acid in the urine and the calcium carbonate component of the toothpaste. The more acid there is in the urine, the more effervescent the paste will be. Being pregnant has no meaning here - says Stuart Gale, owner of Oxford Online Pharmacy.

In turn, Professor Mark Kilby of the Royal College of Obstetricians and Gynecologists adds, `` There is no evidence that toothpaste can detect the presence of this hormone in urine, and women should not rely on home remedies under any circumstances. detecting if they are pregnant.

Source:

1. What Is The Toothpaste Pregnancy Test And Does It Work ?, www.huffingtonpost.co.uk/entry/what-is-the-toothpaste-pregnancy-test-and-does-it-work_uk_59157f0de4b0031e737cc472

2. BIZARRE THEORY Women are using TOOTHPASTE to tell if they’re pregnant - but read this before peeing on your toothbrush! www.thesun.co.uk/living/3543906/toothpaste-diy-pregnancy-test/

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Pregnant examinations