Being treated like shit pregnant.

One day he's nice and the next he's a pure asshole. Has me announce on pregnancy to his family but then blames me for being pregnant because I have the p***y. He knew I wasn't on birth control and we were both not protecting ourselves obviously. But men can get multiple women pregnant just by having sex so how is it the woman's fault? Anyway he keeps treating me like shit and takes out his frustrations of past relationships on me. Even had the nerve to say that if his other kids don't have a dad neither will mine. Like wtf?! I never even told him I didn't want him in the baby's life. He obviously has mental issues because his behavior is not normal. All I've been is nice to him and loyal and this is what I get in return a coward who blames everyone else for his actions. I've been stressed crying and angry and it's cause of him. Is his goal to make me lose the baby?! Smh. I'm 13 weeks.