are conception dates accurate?

[kabump]

hi, i slept with someone one the 17th dec. then i slept with my new partner on the 20th through out,i had a period on the 27th i got pregnant, they said my conception date was the 30th december, what are the chances of it being the lad from the 17th? pleasee help!!!

[LovemyKids86]

But I am almost 17 weeks not 10 weeks

[LovemyKids86]

I conceived January 13/14 and due date is oct 5/6 so I think your dates are wrong

[kabump]

Thank you everyone, you have been a great help :) and thank you, can't wait for my next scan now :) x

[sehale]

It's definitely whoever you had sex with in January. There's no way the ultrasound would be off by that much.

[Motherhoodo12]

Jan for sure:) congrats also

[kabump]

Do you think? I hope so, I really so,I don't think can be off ny 2 weeks, maybe a few days but not weeks x