How does a pregnancy test work?

Pregnancy tests work by checking your urine (pee) for a hormone called human chorionic gonadotropin (HCG). Your body only makes this hormone if you’re pregnant. HCG is released when a fertilized egg attaches to the lining of your uterus — when pregnancy begins. Pregnancy tests work by detecting the hCG hormone in your urine. When your urine comes in contact with the specially treated strip on a pregnancy test stick, results appear within minutes, indicating whether or not hCG, the pregnancy hormone, has been detected.



How soon will a pregnancy test read positive?

In many cases, you might get a positive from an at-home test as early as 10 days after conception. For a more accurate result, wait until after you’ve missed your period to take a test. Remember, if you take a test too soon it could be negative even if you are pregnant.

How does pregnancy test show positive?

As soon as you become pregnant, your body begins producing hCG. The hormone level increases as your pregnancy progresses. Home pregnancy tests are designed to detect this hormone. If hCG is present in your urine, you’ll have a positive test result.

Can a pregnancy test be wrong?

Home pregnancy tests can be up to 99% accurate. However, in some instances, they may produce a false-positive result. Incorrect test usage, previous abortions and miscarriages, and some medications may lead to a false-positive pregnancy test result. People should always see their doctor after a positive pregnancy test.

How do pregnancy tests work for beginners?

Instructions: Remove the plastic cap to expose the absorbent window. Point the absorbent tip (with 5 small openings) directly into the urine stream. Take the sample for at least 7-10 seconds, to ensure that an adequate sample is collected by the testing device.

How does a home pregnancy test work?

A home pregnancy test is both convenient and inexpensive. Learn how a blood test works. A blood test is designed to detect the specific levels of the hormone human chorionic gonadotropin (hCG) in a woman’s blood. This hormone is produced in a woman’s body shortly after a fertilized egg attaches to the uterine lining.

What happens when you take a pregnancy test?

When you take a pregnancy test, it’s looking for the amount of human chorionic gonadotropin (hCG) in your body. You can find hCG in your urine or blood. However, this chemical needs time to build up in your body, which can cause very early pregnancy tests to come back negative. Each day of early pregnancy, your body will create more hCG.

How many days after conception can a pregnancy test detect pregnancy?

However, some pregnancy tests can confirm that you’re pregnant earlier than this, as early as 8 days after conception. Pregnancy tests work by detecting the presence of the hormone, human chorionic gonadotropin (hCG). hCG is a hormone produced by cells in the placenta.

Can a pregnancy test be done with a blood test?

Pregnancy Tests Pregnancy tests look for a special hormone – human chorionic gonadotropin (hCG) – that only develops in a woman’s body during pregnancy. These tests can use either your urine or blood to look for hCG. At-home pregnancy tests are inexpensive and commonly used urine tests.

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