Welcome
Take a look at some of my posts. I too am in your position only......I have kids too. If there is anything you should learn.....do NOT discuss doctrine with your wife. Against sound advice from members on this board I tried that. My wife begged to know what I was thinking and why. She begged for me to provide her with "proof" that the Watchtower was wrong because as a lover of truth.....she wants to know. Well....after discussing 607 BC in great detail and providing proof after proof....all she could say in return is "I dont' see it that way".
The point being......facts get outweighed by a desire to believe what you want to believe. The only chance you have of saving her is to plant seeds that cause her to do her own research and discover for herself the many problems that exist with past and present teachings of JWs.
Take your time