I have read all over that it is possible to get pregnant anytime. But how likely are you to get pregnant on the first couple of days of your period? I would think not very likely, because your system is flushing out all the dead matter. But has the egg already dropped, and is it ready for fertailiztion at the same time? My girlfriend was and is still been on birth control, but for the first time a couple of days ago (which was the second day of her period) she wanted me to cum inside of her, which I had agreed too. I knew there was always that chance, but now I'm not sure how much of a chance I took. Guess I will be buying a pregnancy test in another week... just in case.