Hi Hope,
Sorry, I don't have any experience in this area. I know of one member though who used IVF/PGD for her second child. Her name is Megan and I think she's more than happy to share her experience. She hasn't posted anything in a while it doesn't look like, so hopefully she is still around and can help.
Here is a link to a thread where she posted a little bit about it:
http://forum.cysticfibrosis.com/threads/28484-IVF-PGD-results?p=894592#post894592
Good luck to you, and take care,
Autumn 32 w/CF