My heart goes out to you... I was DFed at 18, reinstated at 19 and never attended another meeting after my reinstatement announcement. I moved an hour north and have spent the past 10+ years deprogramming.
TBH, it didn't make any difference. About 1 1/2 years after my husband and I were married, my mother sent me a letter telling me that she could no longer associate with us. Two years later, with her brother dying of cancer and me 9 months pregnant with the first grandchild, she asked to reconcile. I told her that I would welcome her into our lives, but added in no uncertain terms that she needed to accept that we are not JWs, we will not be raising our son as a JW, and that she must accept and respect that choice, as we will respect them in return. That was acceptable to her. We visited them several times, attended my sister's JW wedding, etc.
Until last Thanksgiving, when she sent me an e-mail telling me that she no longer felt comfortable associating with us.
I've decided that's it. I will not subject myself, my husband or my son to spiritual blackmail and the constant wondering, "when will she change her mind yet again?" Notice, not IF, but WHEN.
I just wonder if it's really worth subjecting yourself to the poison... for what? So that your child can be exposed to a crazy religion? Granted, your mom might not be nuts (mine is) but she's obviously not strong enough to stand up to your siblings and tell them that it's up to her to decide to have a relationship with you... do you really want to deal with that?
I hope that everything turns out OK for you... I'm sure it's a tough decision to make, just remember... what's in your child's best interests? Good luck.