Cant get former boyfriend to LEAVE MY APARTMENT

I am 4 months pregnant now and this guy literally just moved in without discussing it with me. He does not contribute to no bills and eats all my food. He makes a mess and does not clean it up. He argues with me infront my 2 year old daughter and threatens to break my phone when I don’t give it to him. He is not on my lease and when I have called cops they made him leave but he came right back. He follows me around every where and I’m sick and tired of it. I cant even go to my parents house without him following me. What can I do to make him leave!!