You can get pregnant at anytime,but the chances you are now are slim. Its too soon to know.What is so sad is that you considered the reprecussions one day too late,and could very well pay a price for the rest of your life,a baby is not the only thing you should be worried about.You have slept with one guy and in that short amount of time manage to put yourself at risk of any other sexual encounters he has had in the past..in other words ,you may as well have slept with the rest of his partners too.I have made my share of mistakes,so I know well how easy it is to make them.But a mistake is easier to deal with when it doesnt cost you your life.Wish you the best!!

I heard that the chances are very small that you can get pregnant on your period. Shes not really your best friend if you took her leftovers right? I was once in the same position a year ago and I learned I was not a good friend. I didnt care about people back then but I knew I hurt her feelings. Anyways back on topic, get a pregnancy test just to be extra sure. My fiance came in my the other night and I was and am on my period so im counting my lucky stars im not pregnant yet! Good luck!