Wanting to be married and have kids overshadowing...?

I am 18, and have recently met this really amazing awesome cool, guy, who has somewhat the same goals as me marriage and family wise(he is 23 though). And My problem is, I want a marriage and family(and yes, we have talked about this I'm not a psycho who thinks she will marry every guy she meets). But I also have other goals and dreams such as Being Miss Usa. The thing is wanting to be miss usa could take years(I am confident in myself and want to win this year, I mean this is my dream, but I have to be realistic and know that it could take years before I get there). But this guy wants to be married and have kids with in the next 2 or 3 years, my deal is I would love that too(because of my school plans, I want to become a physical therapist assistant, I would be done by then, I do plan on furthering my education but at least I could just go to school part time). But My dream of becoming Miss usa is still strong, and now I feel conflicted. Can anyone help me get on the right track?