So I'm not proud of this and am having a hard time. I was drinking way to much and passed out and came to with someone on top of me, penetrating. I pushed him off but am unsure of how long or if he came or anything. Ok. So this was march 17-18 early AM. I was in a relationship at the time but my bf was not in town. He came back the first week of April and we had sex then, around April 2 and thereafter. I had a very light period around march 26. I found out I was pregnant may 5. They only ever "felt" my uterus and never mentioned I was bigger than normal or anything. I didn't have an ultrasound until July 31 where ultrasound said I was having twins and they measured 18w4 and 18w6 giving me a edd of December 26 and 28..by lmp I was 18w1 giving me an edd of December 31. I continue to have ultrasounds throughout my pregnancy that measure within 3-6 days of my lmp edd the earliest being a December 24 edd, but they haven't changed my edd. However, looking at measurements it is usually just the size of the their head that is throwing the date off, it seems to be a bit large. The rest of all the measurements are right on with my dates. Is there any reason to still be worrying, I feel like everything points to my bf. Please and thank you.