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Best opinion appreciated! Please

I have a question with ultrasound accuracy. My last menstrual period was 08-10-16. I had unprotected sex 08-20-2016 to 08-24-2016 with  ejaculation. Then I had sex with another person on 08-28-2016. We used a condom but he didn't get the chance to finish. The only thing is the condom got stuck inside me. I took a plan B pill within 4 hours later. I took a pregnancy test on 09-06-16 and I was three weeks and 6 days pregnant. I would like to put my aniexty at ease and would like to know the possible conception date was? As of today 09-29-2016 I am 7w and 1d.
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134578 tn?1693250592
COMMUNITY LEADER
You said " and this past Tuesday 08-27-2016 and they measured the fetus and it was 6w and 6d."   Last Tuesday wasn't August 27.  Did you mean this past Tuesday 9-27-2016?

If you meant September 27, then conception counts back to August 24, as the doctor's office said.  This would suggest pregnancy by the first guy, not the second guy.  Not by a huge margin, but an early ultrasound does not have such a large margin for error that you couldn't make this educated guess.  It does mean you should do a DNA test when the baby comes, but I would go through pregnancy assuming the baby came from the sex from the 20th to 24th.
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Avatar universal
Thats what the nurse told me and this past Tuesday 08-27-2016 and they measured the fetus and it was 6w and 6d. When I first took my pregnancy test they said my conception date was 08-24-2016.
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134578 tn?1693250592
COMMUNITY LEADER
Is the only evidence you have of being 7w1d the original pregnancy test that said three weeks 6 days?  I can't really get 7w1d if your period began on 8/24; counting from your last period you would be more like 9w1d.  Did you see a doctor yet and get an ultrasound?
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2 Comments
Sorry it's a bit confusing but my LMP 08-10-16 then I had unprotected sex from 08-20-2016 to 08-24-2016 then I had sex with a different person on 08-28-2016. We used a condom but the condom got stuck inside me, about 4 hours later I took a plan B pill.
You said you were 7w1d.  Did you get this figure from a doctor who told it to you by looking at an ultrasound of your baby?
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