I have a serious boyfriend well call him joe, had sex with him sept 13 I had sex with another guy named rick, sept 14 I'm pregnant and my last period was aug 21 2011 and found out I was pregnant on oct 7.. My due date is June 17 2010, my baby is measuring a few days earlier than June 17 but the doctor is keeping my due date the same, can u help me figure out who my baby daddy is