I'm only 21, i've had unprotected sex many times, my bf had even came inside me many times.. i've miss pills on my birth controll.. i've now been of the pill for a while now.. he came inside since i've been off the pill before, why aren't i pregnant?

Depends: More likely because wasn t meant to happen. The chances of getting pregnant spontaneously is about 25%. Still, if you are not interested in getting pregnant make sure you take your pills.

Depends: Achieving pregnancy is not always easy. The answer depends on how long you have been off birth control. Also, the timing if inter course in relation to your cycles matters. If they are regular, have intercourse just prior to the last 14 days of the cycle for a few days.