Why are most pregnancy tests not valid if they are performed too soon?

Why are most pregnancy tests not valid if they are performed too soon?

Reasons for False Positive Pregnancy Test

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Answers (1)

Answer 1
November, 2020
Pregnancy tests vary in their sensitivity (how soon they can detect the hormone hCG), and you may not have given your body enough time to produce enough hCG hormones that will show up on the test. Also, if you let a test sit for too long (after the instructions on the box tell you), the test is invalid.

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