Does Birth Control really works?

Annie
So I am 15, me and my boyfriend is going thru a LDR. He might come over in the summer of 2017. We decided to have sex on the first of second day we met. I wanna know if birth control really works cause I don't want any children too early. Besides I want him to cum in me and everything so I don't like the ideas of using condoms. I would also want to know how to use the birth control pills. I know it's early to think about it but I'm still a virgin and he's going to be my first.