Gary, I'm so sorry to hear this, particularly because I know you were thinking about having a child with your wife. I didn't read all the posts, this time, but I know what my opinion has to be. You have to draw your line on the sand, you know? You have been exceptionally nice, I guess, and she needs to find resistance somewhere. And this isn't so only because this is where you find information about the society, but because any relationship needs to be a compromise. If you always say "yes" to everything, then you eventually get tossed to one side.
Stand your ground on this one.
As Flipper says, she is afraid of the information YOU are finding here, and she's afraid of the fact that she knows she won't get you into the Watchtower for as long as you keep your eyes open. Sorry.
Keeping your eyes open is even a moral duty, you know? You have a daughter who deserves better than the society. No one deserves the society, but your little girl should grow up free.
So sorry that all I can do is offer my moral support. We're all behind you, man.