I am 12 weeks pregnant tomorrow(7-3-08), I would like to know when my conception date was because exactly 12 weeks ago puts us at 10 April 08 and my husband was gone until the 21 of April. I know for a fact that I wasn't having sex while he was gone, I'm not a cheating wife. He left on the 6th of April. So if anyone could tell me when this child was conceived, I would greatly appreciate it. Thank you.

12 weeks tomorrow would mean you got pregnant on April 11
IF you got pregnant BY April 6 your delivery date should be approx. Jan. 12

The due date and etc. are an approximation. Every women's cycle is different. So the conception date can be off by a week or so hear or there. Also, I think the day the egg is actually fertilized is a couple days after you have sex. Either way, if you didn't have sex in those couple of weeks you probably got pregnant before hand. If you know you didn't have sex in that time why are you worrying about it?

Not worried, just curious.

The due date is a educated quess, give a take a week or so either way.
So if you know when around that date you had sex that is when. There is no way to exactly narrow it down.