A member asked:

Can a quantitative blood pregnancy test be wrong 3 months after sexual contact ??

Q: can a quantitative blood pregnancy test be wrong 3 months after sexual contact ??

: Unlikely. The hormones that turn such tests positive are created by the fetal /placental tissues and detectable as soon as 2-3 weeks after pregnancy begins. While such tests are more likely falsely negative than falsely positive, 3 months is quite long enough that a quantitative test done properly would be accurate.

A doctor has provided 1 answer

Dr. James Ferguson answered

Unlikely. The hormones that turn such tests positive are created by the fetal /placental tissues and detectable as soon as 2-3 weeks after pregnancy begins. While such tests are more likely falsely negative than falsely positive, 3 months is quite long enough that a quantitative test done properly would be accurate.

Dr Rhoads and another doctor agreed

Answered 3/30/2021

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A member asked:

Can a quantitative blood pregnancy test be wrong 3 months after sexual contact ??

A doctor has provided 1 answer

Dr. James Ferguson answered

Dr Rhoads and another doctor agreed

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