The first day of my LMP was June 17, 2009. I had sexual intercourse on the June 25th, July 1st and July 8th with an ex-partner. I then missed my period on what would have been July 15th. I had intercourse July 18th.
My ultrasound on the September 15 said I was 13 weeks pregnant. I didn't have sex at all before my last period and that means I would have got pregnant on my period but I hadn't had sex till after it. Do you know when I possibly conceived?