I’m not an expert on these things, being a guy, but aren’t there other things you can do to prevent pregnancy besides condom and pills?
Or do you want to have a baby now? It kind of sounds to me like you do. You’ll probably have to drop out of school if you do, unless your parents or his parents are prepared to babysit, or you have enough money to be able to afford daycare. I’m assuming that, like most students, you have a limited supply of resources.
Will your boyfriend work? Is he already working? What about you? Work, baby, and school is a huge burden. Not impossible, but it drives most people ‘round the bend and so they drop one or two of those things (usually not the baby).
If you want to get pregnant, stop agonizing about it. It’s your choice. It doesn’t even sound like you’r trying to “accidentally” get pregnant. So it will happen sooner or later unless one or both of you are infertile. I think you should start planning for it, and figuring out what you will do when it happens.