I’ve been sleeping with someone for a few months. Anyway, on the 3/11 I had sex with my ex boyfriend (the one and only time) and then on the 4/11 I had a positive pregnancy test, around 15 hours after my hook up with him. Is it possible that he got me pregnant? Or was I already pregnant before? I feel like the answer is obvious but my head is all over place and I feel like a horrible person. Thanks