I can sort of understand how you feel.. except i'm the one in my relationship that wants sooooooo badly to go to college and get an education.. and just do soo many things. I've always had big dreams and expectations of myself. I want to be a doctor as well.. right now, my husband is the only one working--he's in the military. We just moved so I'm totally lost. And right now, he's doing what he's always wanted to do. But I know my turn will come.. and you know what? I can't wait.

He jokes about when I graduate and become a doctor and he can just sit on his butt. Haha.. It used to kinda bother me, til I realized that not everyone's the same. Some people are happy being parents, staying home and taking care of their children.. I think my husband would prefer this.. I, on the other hand, want to wait for children for like 10 years! hah. Being a stay at home mom would make me miserable.
You said that you just want to have his children, and that would make you happy. That's great. You'll make a great mother.. most mothers now a days become mothers by accident and can't wait for their child to be 18. You want to stay at home and raise his children and support him. You'll make a great wife.

I think you should talk to him about it. Let him know that it worries you that he'll leave you because of your differences.. you never know.. He probably appreciates the fact that he has someone who is willing to give up school or a career for him to advance in his.
Good luckk <3