need sex advice

Im 17 and ive been having sex since i was 16 but my parents doesnt know so, I dont have anyone to talk to about sex. Theres alot of things that i dont know and i have a question if anyone knows... I have unprotected sex with my boyfriend, we use protection every now and then. When we have sex he always pulls out of me before he cums... So my question is, can i get pregnant even tho he pulls out before he cums in me? Any advice would be greatly appreciated! ☺