I concur with what feelingGreat said...about the fact that he is beyond your being able to "help" him, yourself. That is why there are professional counselors and AA---who are much more equipped to help an alcoholic than you are.
You two are partners in life...you are not his therapist person...lol....
Baby has to be front and center, now. And, the best thing that you can do for baby is to take care of baby's mother!
dandylion