Depending on the girls cycle, the odds could be very good. If she is not on birth control the odds are even better.
I would say if she was really close to her period (before or after) there's a less if a chance. But if its like right in the middle..you may be in trouble. And I am proof that the pullout method DOES NOT work :) Good luck!
shes not on birth control and it happened maybe about 10 times
what happened about ten times? You having unprotected sex? Be careful doing that if you dont want to be a father yet...If they were spaced out throughout a month then there's a good possibility she is pregnant. Not saying she is, but there is a chance. Is she late or something? Why are you asking?