Pregnancy conception ultrasound

[ChristineM117]

Hi I had a question about ultra sounds and the accuracy of them as far as conception. I had sex with guy A. Sept. 28th, 30th ( I noticed ewcm this day only for a few hours) and then had sex  one more time October 2nd. He in deed did ejaculate in me, then on  October  6th I had sex with guy b. he claimed to not have ejaculated in me and from what I remember he did not even finish off.  So my first us was November 5th it was both trans and abdominal because it was at the er and they stated I was 7w1d (+\-) 2 days. Then on nov 11th I had a trans us and my dr said I was 8w0d they both matched up with my lmp at sept 16th, do you think  I could relay on the us dates and not spend 1600 to get a prenatal  paternity test? thanks for your time!!

[ChristineM117]

Thanks for the reply Annie! I will it's just sometimes stuck in the back of my mind!

[AnnieBrooke]

I would not spend the 1600, especially because the quality of the different labs doing prenatal testing varies a lot.  It would be really annoying to spend the money and find out later that the results were incorrect.  (If you do go ahead with prenatal testing, test both possible fathers.)

But with the fact that your period and both ultrasounds all say the same thing, and because both ultrasounds were so early, I think in your shoes I would rely on the baby being from guy A.  This would not prevent me from ultimately doing a DNA test when the baby is born just to put the question to rest, but I would go through the whole pregnancy confident.