What do I do??

I don't blame you.
Raising your child in this environment is risky. It would be prudent for you to start scoping out women's shelters. When a man uses physical threats to keep you from making a choice, you and your child are in danger.

Maybe you could talk with some one at a women's shelter - they could provide you advice I am not in the position to.

Get the name of a domestic abuse shelter. If you can't find one, call the nearest hospital and ask for the social worker. She/he will tell you.

Get all your important papers together. birth certidicates, license, ID etc.

Your man has some real problems that have nothing to do with you - you are just the first person he can brutalize. You need to leave.

Isn't there any friend or church people you can call? Call the police and tell them you are afraid and to take you to a shelter. He will not be able to get to you at the shelter.

Stop protecting him and making excuses for him or apologizing to hi.
Next, he will start on the children.
Get out now.

Yes, please get out of the house now!
There are shelters in your city too, look them up and call or better yet,
go there directly. You are not safe in your home and neither is your child.
Please get out now!!

Also, so you have some idea of what goes on - google 'cycle of domestic violence'.

And yes, find a womens shelter that can take you and your child in.

And if the laws allow it in your state, apply for a domestic violence protection order / restraining order / apprehended violence order (or whatever they call it in your state), whereby he is not allowed to :
- go near you or near where you live
- go to where you live or work or frequent (eg where a place where you frequent is necessary, is when you attend the same church)
- contact you directly or indirectly (probably for anything except the kids)
- attempt to find where you live

Most places by now should have some similar law in place enabling this sort of thing.