Please Help.

by Confused
(Columbus, Ohio)

I already spoke to my Obgyn but Im still concerned about a couple issues. My last LMP was MAY 13 2010, I found out I was Pregnant June 30, 2010 and at that time I was 6 weeks and 6 days. My first week of pregnancy was May 20, 2010 and I conceived on May 27, 2010. I heard sperm can live in a females body for up to 5 days.. so when was the last day that a man could have ejaculated in me in order for my first week of pregnancy to be that date??

Would it have to be May 15th or could the sperm from a previous relationship I had on May 1st to the May 7th could have fertilized this specific egg??

Thank You.. Please reply asap I'm due in 3 weeks and really need to know if I have Paternity issues.

Thanks again.