Edd March 19th 12, last period was around the 5th - 8th maybe but, don't remember forsurre. I found out I was 7weeks August 1st from an ultrasound which put me at this edd. . I had sex with a different partner rather then my boyfriend during my period then, continually after with my boyfriend 2days later, I was wondering if I could have gotten pregnant on my period? Or when did I conceive? It's been really stressing me. So please don't judge the other partner was a drunken mistake!

From your edd it appears that you may have conceived on or around June 16. But, that doesn't place you at 7 weeks on August 1, rather 8 weeks and 2 days.

Conception dates as well as EDD are all averages. In the end, you will need to have a patermity test done after the baby is born to determine who the biological father is.