Abuse while pregnant. HELP!!!

I'm in a very abusive relationship, yesterday I went out to seek employment so that my daughter and myself could have a roof over our heads, I'm also 6 weeks pregnant. The abuse gets worse as the days goes by, from name calling to body shaming. As I was on an interview yesterday an my child's father called and I didn't pick up, so the argument started. I have no where else to go but to be stuck in this house with him because I am currently unemployed and I have to be depending on him for everything.

While he was abusing me last night he sat on me and punch me about my body including my stomach, as I was begging him to stop he took out a knife, luckily my daughter was standing there that was the only reason he didn't use it.

He threatened me and said if I go to the cops he will kill me and then his self, I am in fair of my life and I honestly can't take it anymore. I don't know my biological families because I was adopted and my adopted parents has passed. Please I need help.