Why has he changed?

Im 7 weeks pregnant. My husband has gone from being the kindest man I know to someone I cant bear to be in the same room as. It seems his daily objective to make me cry!! I know im hormonal but hes just gone to work and slamming the door and shouting at me. I really dont think Iwant to be here when he gets back in the morning. All this stress cant be good for me or the baby. Ive already had a few worries with the pregnancy resulting in A&E visits. Its like he doesnt care and want to make me leave him so he doesnt have the hle of leaving his pregnant wife! What should I do?? Im so upset and very scared of being on my own!