My experience was an early but slow reveal. I was OK with it but after a few years when he began to accelerate and expand his dressing it got a little more complicated for me. Maybe he was in the pink fog - not really sure to see if he has come out on the other end of that since things didn't work out between us. CDing wasn't really a factor in that though.
I would say that if she can't accept it early on (and by early on when you both decide that this is a relationship you want to pursue long term) then she won't be able to accept it later. Having said that she may stay even if she doesn't accept for many reasons, but there will likely be constant resentment that you led her into something under false pretenses and quite possibly "trapped" her with children and other obligations.
How would you feel if your wife married you with the knowledge that you wanted children more than anything, then after years of trying she reveals she was told before you were married that she couldn't conceive, but hoped they were wrong? It may not be a balanced comparison but I know more than one man this happened to, even a man who neglected to tell his wife he had had a vasectomy. The feelings afterwards varied between understanding to devastation, much the same as a reveal will be.
You don't know what her reaction will be but to go into a marriage without providing this information is just plain selfish and unfair. She has the right to know what she's getting into and make her own informed decision.