My lmp was July 3 2010 I had sex with a guy on June 19 2010 then my current boyfriend on June 22 2010 until today what are the chances I got pregnant by guy # 1 before my period my due date is April 9 2011

The ONLY way to determine who the father is will be to take a paternity test.

- and I'll add "after the baby is born" because people ask all the time on the legal threads if they can have testing done in utero. Of course, that's dangerous and many Doctors won't even consider it.

Your going to have to get DNA testing done. My daughter had sort of the same situation, She gave birth to twins a boy and a girl. 10 month later she wasn't sure about the father. She had them tested. The kids have different fathers. I've never heard of this, but it isn't that rare. From what I searched on the internet. It has taken 3 years of court battles of the fathers they both want to be the father of both. After 6 court ordered DNA tests. It was done Judge said no more. It was very hard on one father and his family because they believed the girl was his too. Before you get one man thinking the child is his you need to be honest. He might be okay with it.But get the baby tested, if for anything medical reasons