J.F.
Hey there,
As a recovering person myself, I know that the only way to get some perspective is for you to go to Al-anon. He might not think he has a drinking problem and once he does realize, he might not ever seek help. But you can get it by going for yourself. Al-anon is for family members and friends of alcoholics and is super beneficial in the way of support for those of us who are intimately involved with addicts and alcoholics. If I were you, I'd do a google search for al-anon meetings in your area. They are everywhere and they even have phone meetings and meetings with childcare.
One thing is forsure, you cannot change him. He has to want to change himself and only then will he seek out help. The only thing you have control over is how you behave in your relationship with him. It sucks to hear that, I know, but there is hope. I'd start looking for meetings now if you can.
I hope that helps. :)
blessings,
J.