Relationship advice

So I've been with my man for about two years im 22 and he is 25 and we are now expecting a child the thing is he is kind of an asshole he wasn't in the beginning we had such an amazing connection always was passionate with one another and happy. then when i went to visit my parents a few days before i was supposed to leave i called him and a girl picked up and we was arguing ect. I broke up with him and i blocked his number he would call off his friends phone and fb and he would change his number every time i blocked it so he could still call me eventually i changed my number and we have a mutual friend i gave him my number and he gave it to my ex he kept calling me and we ended up talking and i took him back then i find out he cheated on me again with some other girl long story short i took him back again and eventually we ended up moving in together and he hasn't cheated on me anymore he has always cheated on every female he has been with he tells me he's in love with me and I'm his first real girlfriend now that he doesn't cheat and he's actually committed. Now he's happy that we are having a baby together i was pregnant before when he was cheating on me and i had a miscarriage so he's happy to have a do over any who the one thing i hate is that he is a heavy drinker big alcoholic and it upsets me because when he's drunk he says fucked up shit to me and i end up crying then he apologizes and wants to have sex he also ends up putting his hands on me when he's mad he will punch me in my legs or push my head or shove me or he will grab my face he only does it when he drinks and he doesn't even remember the next day what he did and when i try to leave he throws all my stuff on the floor that i packed and says I'm not leaving with his child. that he loves me and he is sorry and will stop drinking but he doesn't stop he drinks every day sometimes early in the morning and its not like beer it's straight lq and i tell him i don't want that around my child he has never hit me before through the two years that we been together it just started since we moved in together about 5 months ago I'm currently 14 weeks pregnant i love him more than anything and i want this to work but i feel like it will never work unless he stops drinking i don't want to bring my child into a home like this I'm just so depressed that he is acting this way he always use to drink but not this heavy i know he's been depressed and stressed but there are better ways of handling it then drinking so much that you don't even remember hitting me.