maybe I'm just overthinking and overwhelmed with this pregnancy but I been so worried, I had protected sex with this guy June 16th , he didn't ejaculated because it was a 60 sec thing because I wasn't feeling comfortable, I remember getting my period june26th ending July 1st , after that I got back with my boyfriend and we had unprotected sex all those days . By the first ultrasound they said my due day is April 2 and I'm 15 weeks today , is there any way this baby could be the other guy?