I totally agree w/ Bonnie - a person's specific mutations are only part of the story. My brother and I have/had DF508 and M1101R - my brother was sick all his life and died when he was 13 (10 years ago this month!). And yet here I am, same mutations, a fully functional adult expecting my second baby! There are modifier genes, environmental interactions, nutrition and a host of other things that will affect the severity of a persons disease. Oh and I'm pancreatic sufficient and my brother was not. I really really hate that there are genetic counselors and doctors telling people that their mutations are good or bad (or mild or severe).
I too am sorry that your baby has CF. Are you currently pregnant?