Baby Crazy

I'm a nursing student right now and have 3 years left to go for my degree. I have a steady stream of income, not a lot but enough to live off of, and live alone in my own apartment. All of this is great, but the thing that keeps getting in the way is my maternal drive is going crazy. All I can think about is getting pregnant but I still need to finish school. I have no clue what to do. Half of me wants to go off of birth control and see what happens, the other, more logical side of me, wants to wait until I get out of school, but I feel so conflicted. My college has really good child care services and I think I can handle going to nursing school with a kid, but I just don't know. Some advice could be helpful. Is anyone else experiencing these urges? How do you manage?