help. im so confused.

[babylove10]

i am worried bc i had sex with my bf on july 4th and then i had a one night stand on the 31st. i am now 11weeks. according to the dates i got from the transvaginal ultrasound i had at 9 weeks its about 5-7 days off from the one night stand. is there any way it can be from my bf even though there is a difference of 3 weeks? ive read that transvaginal ultrasounds are very accurate and it seems to be leaning towards the other guy. if you can give me any kind of insight, please help.

[kbender]

it measures the baby, the baby may be a smaller or larger baby than average. but they are pretty good. my guess, honestly, it was the fling, sorry honey.

[babylove10]

Thank you for all your responses, but the length of my pregnancy is from conception. I have a very irregular cycle so my lmp was in the 2nd week of July but it only lasted for 2 or 3 days. And no I didn't have sex with my bf after that. Those were the last two times I did anything. If you've had a transvaginal ultrasound was it very accurate for you? Is there any way it could be off?

[kbender]

im 11 weeks pregers and we got pregnant August 10th, if it was July 4th u would be at least 15 weeks.

[bluegenie2003]

If the doctor is dating you by transvaginal, then I would think the later "event" would have been the actual one.  I'm 11 weeks 5 days today, and my date of conception (had an IUI, so I know) was August 6th. Since the sperm can live inside you for up to 5 days, that could put you pretty close. Unfortunately, the only way to tell for sure is with a DNA test when the baby comes, but it seems to be leaning towards the second guy since there's so much time in between. Unless, like fugitive said, you had sex with your boyfriend after the fling.

[Courtcoop]

Hmmm...sticky situation my friend.

Fugitive does make some sense though....is your length of pregnancy from conception or LMP? That would make a difference.

[Fugitive06]

Oops - I guess this question matters...

Did you have sex with your boyfriend after the fling?

[Fugitive06]

If you are 11 weeks right know & assuming that this refers to your LMP them you would have conceived sometime in early August, not July.

I am 10w2d & my husband & I conceived somewhere between August 13th & the 23rd.  I know this because we held off to strengthen the sperm supply & then went at it during that 10 day span.

Those 11 weeks of yours contain about 2 weeks preconception.

Fugitive