Idk wtf to do

I'm losing my mind .. after me and my fiance tried for months to get pregnant I found out the other day I was I've decided I literally dont want to be anymore becaus hes becoming abusive .. I havent told him yet but yesterday he punched me because his food wasnt finished by the time he got home from work I was finishing it up I'm at a loss I dont know what else to do. I have 2 other kids & no family and no where to go . I have no money what so ever