A member asked:

When should i take a hpt if i'm irregular? how many days after sex?

A doctor has provided 1 answer

At least 2 weeks: Conception may take place only if sexual intercourse happens within few days from ovulation. After conception it takes about 2 weeks to produce detectable levels of HCG, the hormone responsible for a positive test.

Answered 2/4/2015

3.3k views

Thank

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