Help, Wanting to be pregnant

Well I'm 14 and I've wanted a baby of my own for a while. I have 3 little brothers that I've helped with and I really want a baby and my boyfriend, he's about 15, wants one too but I dont know what to do about school and me and my boyfriend live about 4 hours away from each other but he said if I get pregnant he'll move up here with me. I just need some advice please help and don't be rude.