I want to adopt

I've wanted to adopt for the longest time. It's something I wanna do! Before I started dating my SO I told him that I really wanted to adopt someday. I do a ton of missions work in my spare time. I've been to multiple places in Africa, specifically to orphanages in rural areas.

Well I have a great job I'm financially stable (make 82k) on my own after taxes. I don't combine my money with my boyfriend. We don't live together. I've bought myself a little home, my car I bought outright. I don't have crazy financial commitments. So I told my boyfriend that I am planning to adopt within the next 3 years because I know it can be a long process! He doesn't want me to adopt because he feels like I'm not ready to be a mom and that it will hinder our relationship. We aren't married. I'm not stopping my life for him. He knows this is something that I want to do but he isn't supporting him. Maybe I sound rude but I'd dump him before saying no to adopting. Thoughts?