I just ended my period and two days later my boyfriend and I had sex. Some semen came out the side of the condom. Is there any chance I can be pregnant?
Any time you have sex, there is a risk of pregnancy. One reason that God says sex is only for the married is because sex leads to children and children need a stable mom and dad to grow up well. "Marriage is honorable among all, and the bed undefiled; but fornicators and adulterers God will judge" (Hebrews 13:4).
A girl releases an egg 14 days before her next period starts. The egg can only be fertilized on the day it is released. However, a boy's sperm can last up to six days inside of you. There from the time you have sex up to six days afterward, if you release an egg, you could get pregnant.
The problem is that menstrual cycles aren't always consistent. While the average is 28 days, it can be as short as 14 days and as long as 36 days. If this month yours just happens to be short, then the possibility of pregnancy is there.