Too young for a baby at 22 years old?

I recently turned 22 and my boyfriend celebrated his 30th birthday 5 days before my own. I'm still doing community college courses and work part-time on partial wage salary for the coroner's office. The problem... my boyfriend wants a baby... NOW! It's not like I don't want the same thing, but getting pregnant now would just slow down my dreams of being a medical examiner/ morgue tech and I still have so much work to do. We don't live together yet, but he proposed a few weeks ago(so romantic) and we are slowly planning the wedding...trying to budget the wedding costs. He makes good money and right now I am not working and I am just torn! I want what he wants, but I also need to be smart about everything. That being said, it's true...he is 30 and I'm 22... I think we are not getting younger and he wants me to get pregnant so badly. What do you say when two people want the same thing, but one has aspirations that might be hindered by that common denominator of wanting to start a family?