So much stress

Ever since finding out I was pregnant my fiance has gotten meaner. I've been severely sick with morning sickness and all he does is complain that the house is never clean. I work 40 hours a week at a very stressful job and I barely get time at home and when I am there I'm so nauseous that I don't want to move. He is constantly threatening to kick me out of I don't do more soon and then he threatened to make my life hell until he gets custody of the baby. I feel so trapped and all I want to do is walk out into traffic.