I'm pregnant, should I leave my boyfriend ???

being in a long distance relationship is really hard especially when I'm still at uni and studying in England and he lives in Ireland with his 11 year old daughter , I suffer with really bad depression and anxiety , with constant counselling and medication my boyfriend never understands what it's like to feel like this. I try ask for support of him but he doesn't know how to show it. I've recently found out I'm pregnant.. with being constantly sick vomiting and diarrhoea and really high temperature and unbelievable cramps all he bothers to "TEXT " NOT CALL to say you ok? when he clearly know I'm not cause I tell him... he doesn't try to make me feel better.. he is a manager in his company, and recently told me he is going out for a client's meeting and getting dinner with them.. but it ended up in a drink sesh, till 2am... when he had to be up for work 8am.. every day in the past few months he has been coming home not willing to give me any intimacy or any love as he was too tired. but when he knows I'm pregnant and really needing him at this difficult time he decided to drink with clients from work... he said he has to drink cause he is signing a deal worth millions ... but I'm sorry... it's your choice to drink or not... ? especially staying up till 2 am.. it's not normal right ?? especially when you know your pregnant girlfriend is constantly vomiting her guts up and in so much pain and all he cares about is drink... and he calls me mad because of me reacting. can someone help