I need some advice lady's I'm getting a divorce

My husband soon to be ex we been separated 3 years . I just filed for divorce and child support. All this 3 years he has not give me a penny for my daughters. He just called that he will be picking the up tomorrow morning.can I just not open the door and call the police someone is bothering me can I get in trouble when we go to court or if he comes with a sheriff?? Help ladys please