I have been in such a situation myself. We didnt have children and even though it was never clearly stated but there were insinuations. In our society too, women tend to keep this fact to themselves to protect the ego of their partners, leaving them vulnerable to taunts and abuse and when the going gets tough, the woman is left to fend for herself bc the man continues to hide this fact to protect his image. A lot of times, this leads to a meltdown of marriages.
Im not really sure whether it is a wise decision or not. I did the same as maithili but was abandoned by the man who felt burdened with complexes. What i fail to understand is why do others have to bother with this. Whether to have children or not or even having the ability to do so is strictly between the couple. When we as a society are so embarrassed by the process (read s*x) and refuse to discuss it, why bother abt the result. Let the couple find their own equation in the relationship. At least it would save a lot of heartache to the woman who is already reeling from the pain of being robbed of a chance at motherhood