Procedure of pregnancy

pregnancy procedure

A woman can find out if she is pregnant through her menstrual cycle. But one can also do a pregnancy test with urine. The result of this test will be known after three days at the latest.

Pregnancy test with urine: how does it work?

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The hormone HCG (Human Chorionic Gonadotropin) is released into the urine after fertilization of an egg by a sperm. This hormone can be detected with a pregnancy test.

The most common way to do a pregnancy test is to pee on a stick. The stick has antibodies that react to the HCG hormone in the urine. If you are pregnant, these antibodies will bind to the hormone, this will show up in the form of a line. If you are not pregnant, then no lines will appear on the stick. The second way to do a pregnancy test is with blood or urine. A blood test can only be done in hospital. So every woman does her pregnancy test with urine at home.

How accurate are pregnancy tests?

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The accuracy of a pregnancy test depends on how soon after conception the test is taken. The earlier the test is taken, the less accurate it is. Most home pregnancy tests are about 97% accurate when used correctly. This means that if a woman takes a home pregnancy test and the result is negative, there is only a 3% chance that she is pregnant. If the result is positive, then there is still a chance that she isn’t pregnant. A second test may be necessary to confirm pregnancy.

What are the false results of a pregnancy test?

A false-positive result means that you are pregnant but your home pregnancy test shows a negative result. In other words: you are pregnant but the test says you aren’t. This can happen for several reasons:

• You use the wrong time frame to see if you are pregnant. The HCG hormone is released after fertilization, which usually happens about two weeks before your menstrual cycle starts. If you take a pregnancy test too early it may show a negative result even if you are pregnant.

• You drink a lot of water before the test. If you pee too much, then there is less HCG in your urine and this can lead to a false-negative result (the test says that you aren’t pregnant). It’s best not to drink anything for two hours before doing a pregnancy test.

• You have a medical condition that causes high levels of HCG in your urine. This could be a sign of cancer, for example.

A false-negative result means the test says you aren’t pregnant when you actually are. This can happen if:

• The test is done too late. If you take the test more than two weeks after you conceived, it may not detect the HCG hormone.

• You are taking a medication that interferes with the test results.

• You have an early miscarriage and don’t realize it. The HCG hormone is only present for a short time after conception. If you lose the baby before you can do a pregnancy test, the HCG hormone may not be detected.

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