Is it possible a woman can get pregnant by a different me if she was already conceived 3 day 3-4 days prior before she had unprotected sex with him

Hello Anon

Thank you for writing.

It is too close to call. You had sex with both men within 3 days and both could be the father, since sperm can live up to 5-6 days in a woman's body. However, since the first man was 6-7 days before impregnation, it may be more likely that man #2 is the father. But only a paternity test will let you know for sure.

Best,
Susan