2 year long relationship .. advice ?

So I'm going to try and keep this short ! I'm almost 30 weeks pregnant. My boyfriend and I have been together 2 years going on 3 in may. I used to be a "bad" girl I guess but I went to college and changed somewhat and ended up pregnant.. he's a good guy with some bad habits .. I'm going to be a nurse and well it seems like he may be a drug dealer forever.. I know it sounds dumb .. so I told him as long as he keeps it away from my house and my daughter but I want something more .. I've changed .. I'm in love with him but I don't want this life anymore.. so what do I let my love for him overcome all of that or do I let go because he won't change?? Our love is real and he has always been there for me .. through me being in foster care before I turned 18 through family issues and financially as well ... advice please ?