hey there :-D im a 18 yr. old female

i cant really handle the birth control pill it makes me feel terrible. so i have just started the Depo-Provera shots. i got my first shot in june of 07. i am still new to this. i understand that the shot stops you from Ovulating, so the sperm cant get near your egg. Now my question is :-) (When my boyfriend and i have unprotected sex is ok for him to cum inside me? if he does can i still get pregnant?)

Even if he pulls out of me b4 he cums and a lil sperm get inside me can i get pregnant?