Paternity Test: Understanding Conception Dates and Potential Father

Question
April,

I have a question that I have been struggling with for some time now.  I am currently pregnant and 6 days aways from my due date with a little boy.  My last period was June 16th of 2009.  I have done several conception date calculators which has put my conception date between June 1st and June 4th. The problem is that one June 1st I had un protected sex with my ex boyfriend.  He pulled out and did NOT ejaculate inside of me and there were no ejactulations prior to this, therefore I am led to believe there would be virtually no sperm in his pre-ejaculatory fluid if there was any.  As for some background, we had sex very frequently for about three or more years and never used anything other than the pull out method.  There were also many times which he did not pull out and indeed ejaculated inside of me.  Of all the times we had sex, he never got me pregnant regardless of whether he simply pulled out or actually ejaculated inside of me or the time of the month or whether I was ovulating.  He also did this with all of his other partners and never impregnated anyone. After the encounter on July 1st, I then had sex with my current boyfriend on July 2nd.  During this encounter, this man did not pull out and ejaculated inside of me.  As for some background on this man, we had had sex for several months prior to July 2nd encounter and only ever used the pull out method and I never got pregnant until the one time which he did not pull out.  He has a son already and has had several other pregnancies other than the one which resulted in his son then ended in abortion, miscarraige, etc.  My question is, who is likely to be the father?  I know that with the dates being soooo close it is impossible to be 100% sure, but I was hoping that with the background information you could help me.  Also the ultrasound pictures of the baby look very much like the son the second man already has and everyone who has seen them has pointed that out without knowing the situation or being asked.  I have been thinking all along that it was the man from the July 2nd encounter, due to the fact that he ejaculated inside of me and given the background information.  I would really appreciate your opinion on the matter.

Answer
Cassie,
I apologize for taking so long to respond. I've been study like crazy for mid-terms. Now like you said there's no way to be 100% sure without a DNA test. But listening to what you told me leads me to believe your boyfriend impregnated you. While it is possible to get pregnant by pre-cum by the ex boyfriend but It's not really, really common.  Also it leads me to believe the ex boyfriend may be infertile since you had unprotected sex quite often and a pregnancy did not occur. 80% of females in their teens and 20's having unprotected sex will get pregnant within 1 year.  Also with the boyfriend ejaculating it leads me to belive it's his baby. If you weigh the odds, It's much, much more likely to be your boyfriends. Hopefully this will help alleviate your worries some. Some woman do decide to get DNA tests done to be 100% sure, but I was in a situation similar to yours when I was younger. I was pretty sure it was my boyfriends but wasn't sure, but when my daughter was born we both knew she was his. She looked so much like him. We never got a DNA test done we felt so strongly she was his. Maybe when your child is born it will help you just know. Congratulations on the upcoming arrival and I wish you a quick and easy delivery. Good Luck Cassie!

April

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