Does he have keys to the house? Have you changed the locks? I'm sorry to be so practical, but these are things I am concerned about.
Major kudos to you for being strong and doing what needs to be done to protect yourself and your child. I know this is a very scary time for you. I hope he doesn't bother you anymore. At the same time, I realize your concern for him. That is normal, but please, PLEASE, do not talk to him if he calls. ((((HUGS))))