I'm 16 and lost my virginity to my boyfriend last sunday, and I was supposed to get my period the day after but now it's 5 days late. It's not usualy regular but it's not usually very late,either. We used a condom and spermicidal foam and he pulled out before he came so I don't think the chance is very good, but i'm looking for opinions. The condom didn't break or anything. I've been worried about this and dealing with a lot of stress at school that I think is delaying my period.