Hi ladies, I've responded to this question a couple of times on BnB, as it does come up from time to time with women who have had cryosurgery and are concerned about it.
I had cryo done years ago and when I started trying to conceive my first child, my doctor told me that the only real concern with TTC is, depending on how many abnormal cells were removed from your cervix (how much area was affected), it can reduce the amount of CM that your cervix produces. And obviously, CM is important to get the swimmers up where they need to go! My doctor advised me to take Mucinex pills because it will increase your natural cervical mucus, and of course you will read of many other things you can do naturally to increase it, as well.
In my case, where the cryo was performed, it was near the opening of my cervix and when it healed, it slightly tightened that opening, so my doctor had some concern that it may also hinder getting the swimmers up past the cervix, with that "entrance" being a little tighter than normal.
However, I'm happy to report that I conceived, had a very healthy pregnancy, and a very healthy delivery just using Mucinex for the CM and good old-fashioned BD.
Of course, it's still something you want to run past your doctors! Best of luck to you!