welcome to SR - I am sorry you're going through this...but many of us on SR are in or have been in the SAME situation. Read all you can, there's great advice here.
It's up to him and only him to stop, if you have already threatened to kick him out and haven't followed through he will continue to abuse knowing you aren't serious. Stick to your guns, he has to know you are demanding a better life for yourself and your baby.
(((((hugs)))) to you - I'll keep you in my prayers.