What's the first day of your last period? Did you get your due date by ultrasound, and if so, how early in the pregnancy was the ultrasound?
I'm was in the same situation. In due may30 pregnant with twins. Calxulators says I got pregnant with my babies September 6th which is when I had sex with my husband I had a affair Aug.20th n had my period 3 says later so I know Who the father is
Thats pretty close to know for sure, you can have sex up to five days before you ovulate and two days after.. Your best bet is to come clean and get a DNA test.
chance can be there bt more chance is for your boyfrnd only becose it take almost 7 to 9 days for conceptn to occur after fertilisation(for majority of cases) to take place.....so be happy abt your pregnancy..nd stay happy with ur bf...