Well, my lmp was November 30... and I had sex with my boyfriend on December 8... I ran into my ex and we had sex on December 12... on December 21 my boyfriend and I had sex again... I am now 9 weeks pregnant and unsure who got me pregnant. Please help.

Guess you will be doing a paternity test when the child is born.

Timeline conception analysis isn't fool proof. DNA is.

Are you 9wks by your LMP or by ultrasound?

Are you planning on telling either of these two men there is a potential other father?

If you are trying to confirm or determine the father on you own, you are running a huge risk of obligating a man that is not the father.

Do you have a regular 28 day cycle?

Figuring out who fathered your child by the calendar is not very reliable. The only way to know for sure is with a DNA test.

You have a moral obligation to tell both men the truth though.

DNA is the only way to tell. I am 15 weeks pregnant. My husband and I were actively trying, keeping track of LMP and everything. We conceived only to find out that I was not as far along as we thought. Here I ovualted about 2 weeks later than normal, and it was just luck that we got pregnant. Moral to my story: you really never know when you ovulate. Now you have to wait until the baby is born and get a paternity test done.

My guess is the ex is the father. Still, I have no way of really knowing when you ovualted or if one man has stronger swimers. You really need to have DNA testing done.