Is it possible for a girl to have her period while she is pregnant?

No... you can have some bleeding in pregnancy which can be mistaken for a period, but you won't technically have a period. Usually it will, in some way, be different from the norm... lighter or shorter, come at an off time, but for a small percentage any difference won't be noticed.

Yes it is possible!! I had a friend who didn't find out she was pregnant until she was 6 months because she had her period every month up until then...

Yes it is possible!!! I had a friend who didnt find out she was pregnant until she was 6 months becuase she had her period every month up until then...

This wasn't a true period. This most likely was caused by placental lie. A true period is caused by ovulation and no fertilization, thus shedding the uterine lining. The uterine lining cannot be shed during pregnancy.

There are many reasons for bleeding during pregnancy, but it is not a true period.