Husband drinking problem baby due in two days!

So about six months ago my husband started drinking at night when he got home from work. He would have a few drinks play a game and relax. It then turned into four nights a week he would drink enough to get buzzed or even drunk play a game and then pass out on the sofa. Now last night he drank fell asleep and wet himself all over our new sofa. I am mad about the sofa sure but mostly I am worried about my husband our relationship and our baby who will be here in two days. I'm not sure what to do or why this is happening. He says he dosnt have a problem but I just feel drinking alone four to five nights a week until you fall asleep is a problem. Help me ladies! I'm worried and this is all happening at the worst time!!