Who is the father?

[newmom12440]

Please don't judge, but I'm in a sticky situation and I'm not entirely sure who the father of my baby is. Here's the info:

Last period: July 26th-August 2nd
Periods are very regular. 30-34 day cycles that always last 7 days.

Guy 1: Had sex on August 3rd (Day 8 of my cycle). He pulled out before ejaculating inside of me.  
Guy 2: Had sex on August 15th (Day 20 of my cycle). He completely ejaculated inside of me.  (I took Plan B two days later because I thought I felt ovulation cramps.)

I had a nine week ultrasound and the due date was predicted to be May 6th.  

I've calculated my ovulation window a million times and I'm almost positive that I got pregnant by guy 2. My cycles are so long that I highly doubt I got pregnant by guy 1 on the VERY FIRST day after my period ended by a guy who didn't even ejaculate inside of me!  Do you all agree?  Do I have anything to worry about? I've already told guy 2 that he is the father and have kept the rest my secret.  
  

[newmom12440]

Thank you for your responses. Another factor to throw into the mix is that I am having a boy.  Have you ever heard that male sperm travel and die off quicker than female sperm?  I think that if I were to have gotten pregnant by guy 1, there would be good chance for the baby to be a girl (unless I literally ovulated right away after my period).  I really think it is safe to say that guy 2 is my baby's father.  If I have doubts later on, I do like the idea of maybe having guy 1 take a test just to rule him out and not even have to tell guy 2 about it.  I know it sounds dishonest, but it is such an embarrassing situation and would be so much more stressful for everyone involved if I confessed that there may uncertainty regarding the paternity of the child.  

[Jaz1989]

its very possible that guy 2 is but guy number one never ejaculated inside you but pre-*** is more potent then regular ejaculation. but from my stand point (not a doctor,almost a nurse) its more then likely #2

[AnnieBrooke]

Sure, guy 2 is more likely because of when you would have possibly ovulated and the lack of ejaculation, but the consequences of being wrong about this would be pretty serious.  Sperm can live a long time in a woman's system, and sometimes women ovulate early.  If guy 1 had sperm in his pre-ejaculate and you did ovulate early (some women ovulate on day 8 of their cycle), it could be him.  If you never do a DNA test, you will do a disservice to yourself, your child and both guys.  Is there any way to do a test with guy 1 after the baby is born, just to rule him out?  (Or is he either entirely gone from your life or so close into it that he would tell guy 2?)