Let me just give some pointers on things not to say. They are cliche, and actually become jokes among us infertiles.
1. "It will happen in the Lord's time." Let me begin by saying I promise an infertile woman is VERY aware of the Lord's time. She must have total faith in it to even get through. The Lord's time is not predictable to any of us, so this almost seems like someone saying, "It will happen yesterday, today, or tomorrow." It is not really very comforting.