I was wondering if there is anyone out there that can help me understand what's going on :(... Me and my boyfriend split up for a while during March this year, he slept with someone around the 14/15th March. The girl then contacted him a few weeks after telling him she was pregnant, she also said that she had slept with another guy around the 1/2 March and was unsure who the father is! She has been given a due date of 5 Dec and this hasn't changed throughout her ultra sound scans! The worst thing is I'm pregnant as well and have a due date of the 14 Dec, I slept with my boyfriend around the 6/7 March! I know he is the father to my baby boy as I haven't slept with anyone else this year! Does anyone know when she would have likely conceived and who is more likely to be the father? My boyfriend or the other guy she slept with at the beginning of March?

Odds are likely that the baby was fathered by the other guy going by those dates. If your boyfriend was the father, her due date would be later as the pregnancy is dated from before they had sex.

However, due dates are not exact, so to be sure they really should have a paternity test done once baby is born.