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First positive pregnancy test

First pregnancy test is always difficult, emotional and memorable but first positive pregnancy test is something you never forget. What you know about pregnancy tests?

Women health is pretty complicated and hormonal menstrual cycle could be also different in each person and ovulation/conception days also could be different. Fertilization and implantation processes also could be different depending on hormones, sperm activities, reproductive organs’ conditions, etc. The amount of time it takes for the fertilized egg to implant in the uterus wall varies widely.

Implantation moment is crucial for pregnancy tests. Usually implantation will occur between 6 – 12 days after ovulation. Once the fertilized egg implants, the developing placenta begins releasing Human Chorionic Gonadotropin (hCG) into the blood. Some hCG also gets passed into the urine. The level of hCG usually double every 2-3 days in early pregnancy. Once the levels are high enough they can be detected by pregnancy tests.

Pregnancy test

Market is full of pregnancy tests but the sensitivity of all pregnancy tests vary quite widely from brand to brand – usually from 10 mIU to 250 mIU. The lower the level of hCG picked up by the test, the earlier you will see a positive result. If you use pregnancy test too early or if you use less sensitive pregnancy test, you can get first negative pregnancy test and after few days you could discover positive pregnancy test.

Some blood tests can measure the concentration of the hCG and provide positive pregnancy test as soon as after 6-8 days after ovulation.

First positive pregnancy test

Early positive pregnancy test

According to medical standards, the hCG level that’s less than 5mIU/ml is considered negative for pregnancy and levels above 25mIU/ml is considered a positive pregnancy test.

As women are different (especially during fertilization and implantation), all could have positive test of pregnancy only at the moment when the hCG level reach 25mIU/ml and more.

False positive pregnancy test

Can positive test of pregnancy be false?

Very rare positive pregnancy test could be false but it is possible. False pregnancy tests always have reasons. In most cases false could be negative pregnancy test. Positive pregnancy test could be false in following cases:

  • If you read pregnancy test late (after the ‘expiry’ period) – then you might get an evaporation line, which can be confused with a positive result;
  • If you are using fertility medicine or other hormones for any reason – some drugs can artificially raise the levels of hCG which could be a reason for false positive pregnancy test;
  • If you bought expired or bad quality pregnancy test.

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