Fiancé

I wanted to see if anyone has or is going through the same situation as me.. so I’m 7 weeks pregnant and my fiancé still drinks which I have no problem with but it seems like he gets super violent when he drinks. So tonight we went to my cousins dance recital and he got drunk.. he wouldn’t let me drive , started cursing at me calling me names.. and then by the time we got home he wanted to try and be all nice to me.. I’m very upset by the whole situation specially since we’re going to be having a baby and I’m scared that this will continue.. if you’ve ever been in this situation please tell me what I should or what you did to make things better