Your ovulation days: in September was likely between Sep 10 to Sep 15. If sperm is viable for 3 days average, then any intercourse between Sep 7 and Sep 18 would produce conception. In other words, it could be either man being your baby's father, depending on luck and sperm count. Sorry cannot give you a more differentiating answer. Thanks for trusting in HealthTap.
Answered 11/2/2015
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A doctor has provided 1 answer
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