Hi, I am currently 12 weeks and 2 days pregnant. My last period started on April 20,2013. My due date is January 25,2013. I had my first ultra sound on June 26,2012 and on that day I was 9 weeks and 4 days. I have been with my boyfriend for 1 1/2 years. After a fight we had (which was completely silly looking back now) I went out, had one too many drinks and had sex with my ex boyfriend. I am so ashamed. My current boyfriend does not know. This was first and the only time it happened but now I am worried because I had sex with my ex on April 27,2013 without a condom but he "pulled out" and did not ejaculate inside me. I had completely unprotected sex on May 2 and 3 with my current b/f. He ejaculated inside me every time (3-4 times at least). How likely is it that the father is not my current boyfriend? Is there anyway to tell? I'm sure you get questions like this a lot. I just hope you can ease my mind or give me some good options on what I can do to find out.

Sorry, but you will have to get a DNA test after child is born, Conception dates are estimates and even after ultrasound, the best date you can get is plus or minus one week, (a two week span) so with the sex so close together, it may be either.

Pull out does not work, there are still plenty of sperm in early fluids, plus drunk most do not pull out on time, so there is more sperm then

I'm sorry, the withdrawal method is not a birth control method. There are plenty of sperm in the pre-ejaculate to get your pregnant.

Unfortunately you will have to wait until the baby is born to have a DNA test done.