Okay, so I had an U/S at the ER today because I was bleeding but everything is fine but they said I was a week ahead. I'm supposed to be 17w3d but they said the baby is measuring 18w3d and she said the computer might change the due date, which I read changed my conception. I haven't even gained any weight this pregnancy, and actually lost 4 pounds. Now, my LMP was Nov. 28, 2011. On the night of December 4 at around 1am so more so December 5, my bf and I both fought and we were immature so he was at the bar and was flirting with girls trying to get their number so I got angry and left with two of his friends and I had sex with both of them. With one of them, it was like 20 seconds and he did not cum in me at all and he was extremely drunk, and with the other, he did not cum in me either and the sex was maybe like 2 minutes, and he was really drunk and kept asking to cum inside me, but I said no and he pulled out and came on top of me but I worry what if a little bit of cum got inside me like pre-cum or something? I have an U/S anatomy scan on Monday so I'll probably find out more about the measurements, but all this worries me that my boyfriend is not the father. After that night, we had sex every night and he always came inside me and I was on Metformin for an Insulin-resistance problem and I wasn't ovulating right and that's why my bf and I couldn't get pregnant, but I was on Metformin for about a month or two before I found out I was pregnant and if that means it caused me to ovulate right then it means I conceived after December 4/5, which puts me a little bit at ease because Dec. 4/5 was also the last night of my period but I wasn't bleeding that night nor was I ovulating. I could tell I was ovulating a week later because of the sticky discharge but who knows? Now that my U/S date is a week ahead I am extremely worried about the conception date. What do you all think? Please no judgments; people do dumb things and I regret all the dumb things I have done. I just hope I'm right in assuming the baby is my boyfriend's. Help me shed some light on the situation?

Sperm can live for up to a week, so it could be any of theirs. Sperm are released even if there was not ejaculation, so its a matter of which sperm reached the egg first. The only way to know 100% is a DNA test. If the intercourse was 2 weeks or more apart it might be easier to tell by dating, but if I read your post right you had intercourse with bf the next night.

My date was moved meaning i would of had to ov on cd8 which i know that i didn't but they go on the size of baby and every baby grows diff that is why they give you the 4 weeks at the end. But like said it could be any of the 3 men as pre-cum has swimmers in it the only way to know is a DNA test

theres a chance it could be any of their baby. however, babies get dated via their growth and they have growth spurts. so when you have your scan, ask the doc x

We weren't trying as such, we weren't using contraception but he never came inside me and here I am so it's definitely not impossible x

sperm can live inside you for days... Me and my boyfriend had sex and three days later I ovulated and became pregnant, you have to get a dna test and be straight with your boyfriend I think he deserves to know there is a chance it isnt his.

Agree with previous posters, it could be any one of those guys and your boyfriend deserves to know. As do the other guys who may be about to become a father

the fact that you only had sex with the other guys once and your oh obviously loads of times sways it more to your oh but obviously it could be any one of theirs, a man can ejaculate at any time before actually finally cuming. I think you are defo going to have to get a dna test as it wouldnt be nice for your oh to bring up someone elses baby without knowing about it. You will obviously need to tell him whats happened for the test to go ahead or you would need to test both other guys without him knowing to eliminate them. Its a very tricky situation as you already know but yes we all do silly things that we regret. I hope you get this all sorted xx

it only takes one sperm, so it doesn't matter how many times you had sex with any of the 3 possible fathers, they are all possibilities, you need to get a dna test! Sperm can live up to 7 days and it can take up to 14 days for the egg to implant (but this can obviously happen immediately too) the only way to be sure is tests!

no my boyfriend already knows about all this. i told him i had sex with them two days after it happened and when we found out i was pregnant, he was unsure if he was the father, but we have talked about it and we both just know in our hearts he is the father. i talked to the guy about that night and he said he never came inside me whatsoever. it was also the last night of my period, and there was no bleeding anyways. also, i dont think i said this, but i was ttc with my boyfriend on and off but it was never happening and then for three weeks i bled so i went to the doc and she tested me and found out i am insulin resistant and i wasnt ovulating right so she put me on metformin and that's how i know it went by ovulation bc i wasnt getting pregnant ever before and then i got on metformin and it worked like a charm bc if i was able to conceive before then i would have had 20 babies with ex boyfriends by now. If the Metformin helped me to conceive then that means it pushed me to ovulate correctly, so making me pregnant two weeks after my LMP which would be around December 12 (when my bf and I were having unprotected sex constantly and he always came inside me the entire time we were dating anyways)