Confirming Pregnancy through Urine Test: A Guide

Hello, I am Park Jeong-won, a counselor at DocTalk-Naver Knowledge iN, a well-established obstetrics and gynecology clinic in Gangnam.

As a female doctor specializing in obstetrics and gynecology, I often get asked about the best time to confirm pregnancy through a urine test.

When Can Pregnancy Be Confirmed through a Urine Test?

Usually, pregnancy can be confirmed through a urine test about 10 to 14 days after fertilization. This is because human chorionic gonadotropin (hCG), a hormone secreted by the body when pregnancy occurs, is detected in sufficient concentrations in urine around this time.

How Accurate Are Urine Tests?

Most pregnancy test kits show an accuracy of over 99% if taken one week after the expected date of menstruation. However, if you take the test too early, the hCG concentration may be low, resulting in a false negative.

Best Time to Take a Urine Test

The first urine in the morning is the most concentrated, making it the best time for a urine test. If the initial test results are negative, but menstruation is delayed, it’s best to check again in a few days.

Alternative Method: Blood Test

If necessary, a blood test may be performed at the hospital to confirm pregnancy. Blood tests are more sensitive than urine tests and can detect early pregnancy earlier, approximately 7 to 10 days after fertilization.

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