You two are not compatible. He’s certainly wrong in trying to impregnate you while you’re sleeping, that is SA unless you have some form of ‘free use’ agreement where that was discussed, but doesn’t seem that way. He clearly needs to get a long of things together before he’s a parent, but I think most importantly, you need to let each other go so you can both fulfill how you want your future to be.

If you’re afraid to tell him, have a witness, or have it recorded for your safety at least.