Hi i am 26 years old. i had my husband without planning and now i had my boyfriend now which i loved. me and my bf intercourse july 2 up to 11,2011 and my Last menstrual period was june 30,2011 with 28 cycle in 2 months. My husband tell me to come back for our son..and i came back july 12 3o'clock in the morning and we intercourse and intercourse again july 14.july 15 my breast started to ache and becomes tender..my ultrasound tells i had 4 weeks and 1 day age of gestation. is this help me to know who is the father of my baby? thank you..and God bless