I'm having trouble deciphering information I'm looking up online, so I'm hoping someone can help me out with this. I was 33 weeks pregnant on sunday based on early ultrasounds (i believe 12 and 20 weeks) and I didn't know when my last period was, so they estimated my due date from the ultrasounds (they have said sep 7 or 11) Counting back, it sounds like I concieved december 1. Would that be at all accurate for determining the father? I was intimate with someone on november 28, and the other guy said he and I weren't together that weekend, but it's possible we could have been a week later or earlier, though i believe he was away at school until christmas. I would like to think the guy I had sex with november 28 is the father, so I'm wondering if how far along I am gives a good picture of when conception occurred. The baby is a girl, which I have heard generally "take" a few days after intercourse. I also had what I thought was a period about a week or so later, but looking back it was so light and only seemed to last a day or two, I'm wondering if that was implantation bleeding. I'm also unclear how that works. Obviously we're going to do paternity tests, but I'm concerned because one of the possible fathers is threatening to sue me for full custody, and he's a bit unstable. The other possible father was very much a one time fling, but a good guy. After we were intimate I did have an immediate feeling of, "oh no, I'm pregnant" that I couldn't seem to shake off (anybody else experience that with a pregnancy?) Anyways, I'm stressing a bit and basically just looking to ease my mind, enlighten me with your knowledge. Also I'm terrible with calculation, so feel free to talk down to me. and yes, I realise I'm stupid for getting into this situation, no need to point that out.