OK according to my dr my due date is may 28th based on the first day of my last period which was Aug 20th 2008. But when was my child conceived because I had sex with one guy on Aug19th and then I had sex with a different guy on Aug 25th? I plan on getting them both tested once the baby gets here but I kind of want to have an idea of whether the father is guy #1 or guy#2.