I want to have a baby!!!

Nautia
So I'm 16 about to be 17 in March and I'm wanting to have a baby with my boyfriend of 3 years but he doesn't think I'm ready for one... I disagree with him because unlike most girls my age I am working hard to get more accomplished with my life already... I chose to go to an alternative school so that I could get on the fast track to graduation and I have 2 jobs and I also told him that the reason I disagree with him is because I feel like I'm ready and I believe that if I feel like I'm ready for it and I'm ready to take a serious role as a mother than he should trust me when I say I will do whatever it takes to make sure my child has everything it needs... What should I do?