I had sex with my gf recently, while she had her menstruation. We are seeing each other for 2 months now, but she still hasn't started to take a birth control pill. the thing is that we had no protection, and in the heat of the moment we couldn't even stop before I ejaculated. It was the third day of her menstruation, and what I really want to know is the chance that she might become pregnant. thx for your time.