My wife and I have been going through this for some time now, so I guess that is my confession. I have come to the realization that we will most likely not have children, but it has understandably been more difficult for her.
Just be there for each other, even if she says you don't understand what it is like for her (because she is right - you don't). And get ready for the emotional roller coaster every time she sees a pregant woman or a baby at the store, or every time one of her friends on facebook gets pregnant.
Pretty much it has come to the decision of whether we want to just be child-free or adopt, which can be expensive. Fertility treatment is not an option for us, as insurance doesn't cover it.
Best of luck to you and your wife. Do not forget that the number one reason that you married each other is not because you wanted children (even though you do want them) but because you love one another and want to spend your lives together.