Hello everyone! I am new to the site and really need some advice. I had my first scan on Saturday. They dated me at 13 weeks and 1 day. My boyfriend was with me and as she told us the date I saw his face drop. I fell pregnant the first or second time we slept together, even though I was on the pill. So was quite a shock to us both! After getting our heads around it we understandably both became quite excited. The dates do not match. The dates mean I should have conceived late October. Before we had slept together. I hadn't slept with anyone else. Now my boyfriend is questioning if he is in fact the father or not. I of course know that he is, unless we have an immaculate conception on our hands! Highly doubtful! I just have no idea where to go from here. Any advice and suggestions in how to handle this would be greatly appreciated. I have read many many forums about how babies can measure larger or smaller, I just have no way of being able to convince him that he is the father and would hate for him to walk away and miss the next 6/7 months of this pregnancy.