Tell him it's not going to happen, ever, and that, if he's interested in starting a family, he needs to put himself out there, date around to see if he can find someone who he connects with emotionally and who he is attracted to... give it time and see if there is compatibility.
In the meantime, he could work on finding some interests and activities to do with other people. There is always meetup.com.
I wouldn't have a baby with him if i were you, either. I don't see the point, and you don't seem all that interested in having his kids.
apparently, he has no clue what a huge responsibility it is to have children.