I know this is really horrible and I am so ashamed of myself for it happening but, I got my period on the 5th of November. I am normally between 32-35 days in between, it's not too regular. I have been with my boyfriend for over 4 years and we have never used protection and never gotten pregnant. He works away a lot but recently he has been back. My point is I had a one night stand on the 19th and I am so worried that my boyfriend isn't the father to my unborn baby. What are the chances that it was the one night stand? I am so scared, I made a huge mistake!
Hi Zigzag,
There is a chance it is the other guys. It depends partly upon when you ovulate and that can vary. Sperm can survive about 5 days too.
You'll need a DNA test to confirm. There is no other way.