help I don't know what to do 🤷‍♀️

Ok so everything came to a head last night while my fiancé was out yet again, getting drunk with his friends. It's the same every week Thursday-Saturday we are meant to be getting married in April! I'm 19weeks and I've been hard to live with I know but I've been to the doctor to put me back on anti-depressants as he stopped me cold turkey when I first discovered I was pregnant. He keeps saying he does all the work, yes I don't have a job as he's told me what I could earn isn't worth it! I keep house clean wash cook look after our 9yr old and new puppy. He's so nasty I don't know what to do I've explained my hormones are everywhere and the tablets should help but feel lost and lonely. We have been through so much but I don't want to carry on like this I can't 😢😞