IS it possible to be pregnannt even if you haven't missed your period?

It is a possibility but very rare from what I here. If you think you are then get a test.

I agree with Jesushelper. Cherie, it is possible for some women to get pregnant during their period. Some women even ovulate during their period. If you ovulate during your period, there is a chance you will get pregnant. If you think you are pregnant, take a home pregnancy test or go see your doctor.