Baby father betrayed me! Tried to get new girlfriend to fight me while pregnant

He told his new girlfriend of 4 months that i tried to commit suicide and that i did coke at one point of time in my life. That was literally years ago. Now since i won’t let him sell drugs in my yard (he lost his job after we broke up and started selling drugs) he got all upset saying he was going to get his new girlfriend to beat me up although i’m 7 months pregnant with his child. I never thought he would turn out like this and embarrass me so much…. im starting to hate him. His new girlfriend and her sister are now torturing me on instagram telling me everything he said about me and it hurts. I also just found out she’s now pregnant for him as well. I just can’t see coparenting in our future as we were already struggling to do so because he would randomly have spells where he would curse me out and call me names because he supposedly thought about something from the past. I already filed for child support but since his mom denied the papers (he live with his girlfriend but i put his mom address when i filed as i don’t know the new girlfriend exact address) that court date in cancelled. Ladies i need your advice please!