Help please 😢😢😢

Im going be 6 months prego i left my bf/bd i had go im hurting i know hes no good for me i needa stay away from him how can i get over him. He said he care &loves me witch bs if he did he wouldnt hurt me knowing im prego i try to be a family he doesnt want to put his part. How can i stay away from him not wanting want see him & stuff.