How exciting! You sound like your looking forward to it and so you should because it’s the best feeling in the world and yes it’s better than any drug I’ve had. The pleasure and pain of seeing that little face looking at you moments after birth ???? so I’m not sure you can change him as he need professional help and the only thing you need to concentrate on is staying healthy and stress free. If he’s not going to do that then don’t try changing him because you won’t! You know what it’s like and it’s a horrible drug and needs no explanation of his addiction. It would be great to get a new circle of friends especially baby related and when that little girl comes along you try to go to every single baby related class you can because as a stay at home dad who has recovered from various addiction I found new friends in new circle and you would be amazing how it helps. Swimming with my baby was magical. So focus on you and your baby at the moment and stay safe. If he won’t change then you do what you need to do to protect that treasure.