Until there are permanent orders. Could be years in theory.

Can is a big word. If you are drug free, have cooperated and have completed your classes, it should be okay; but we can't predict what, if...

Since she is incompetent now, you will need to seek guardianship or conservatorship.

It depends on where the custody case is. Appropriate motions should be filed there, but that won't protect her in the short term. It's a...

If the "papers" say you split, you split. And you can get child support when one party earns more money even with 50/50 timesharing.

You can go get her and support her activities; meaning taking her to them. You cannot unilaterally stop child support.

You need to hire a good lawyer and there are plenty in your area. You need to plan and get moving.

Your question is too multi-faceted to answer. Call some divorce lawyers in Lexington.

You get a DNA test once the child is born and if not yours that proves adultery.

Alabama has jurisdiction over the child. You should get a new attorney.