Hello. If someone can help me with this situation that has been killing me. First of all i have anxiety issues and used to take ativan to control my anxiety but cannot take them anymore because i have found out on July 18 that i am pregnant and i am married. My situation is that i am pregnant my last ultrasound was done 08/25/2017 i was 11 weeks and 5 days. I am projected to be due March 12,2018. However my worry here is that i had a one time night with a friend June 5, 2017 and i am killing myself over this thinking and being afraid that the man i had sex with on June 5, 2017 even though it was with a condom from start to finish could be the father of my unborn child. can someone please help me out? My period cycles are always different they are either every month or they skip months so my period is not to be a good guide. Can the father of my unborn baby be the friend i had protected sex with on June 5,2017 be the father?