A member asked:

When you have sex with 2 different partners 2 weeks apart is it possible to tell who dad is off of how many weeks you are? period was july 17 .. had sex july 16. and then had sex july 31st (ovulated this day) due date is april 23, 2023?

2 doctors weighed in across 2 answers

Not with 100% certainty. It becomes a legal issue and guessing leads to surprises in the delivery room or later. You can verify paternity with NIPS testing on a mother's blood sample as early as 8-10 weeks.

Answered 10/2/2022

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It is not feasible to pin point the father with any accuracy from the information you provided. Your doctor can arrange pre-natal paternity test, Pre-natal Paternity testing: https://americanpregnancy.org/paternity-tests/non-invasive-prenatal-paternity-test/

Answered 10/3/2022

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