Sorry to here of your shock, Pac. Welcome to SR. Lots of useful stickies at the top of the forum.
You know that if you have kids, your wife will need to kick the problem drinking into touch permanently, rather than just for the pregnancy. Unless you are planning for them never to be alone with her and to save up for the therapy in their teens?
Keep going with posting here and with al-anon. If you put the work in on your own thoughts and info gathering, you'll make the best decision.