Pregnant and im going to divorce him

He doesn't like when I talk about our baby he said bad things to me even in front of people hang out alone at night and when I go with him he drives like crazy like today every hole that there were in the street he take it and I said slowly I'm feel pain but he doesn't care and u told him to stop me because I can't handle it and I walk like 1 hour to arrive home now I'm really worried I could misscaried I'm 16 wks and in feel mild pain.he doesn't want us.