BW,
I had a thought, something close to what 'dancingnow' just posted. Divorce doesn't have to be the end, we can't predict the future.
I guess what I'm trying to say is; I strongly urge you to continue to attend AlAnon, to build a life for yourself and your child and to live. You'll most likely have contact with your husband (ex or not) due to the shared child and in time may grow closer again if that's what is meant to be. If it is the right time for you both you could reconcile, if it isn't, you continue on your journey. Maybe if you can free yourself to 'One Day At A Time' instead of looking too far down the road you'll find more contentment??? I don't know, just a thought.
Good Luck.