Just wanted to welcome you too Healingwell.
I can't help on this one I'm afraid. I know of 2 CF mothers with young children. One had IVF, the other conceived naturally-twice! I haven't come across anyone who's used a surragate.
Where in the world are you from, as this will help people in answering. Also why aren't you able to have children yourself? If you don't mind me asking. The reason I ask, is people with CF, with a FEV1 lung function score of 60%, are at a very low risk of problems during pregnancy. A study my consultant did with a load of others across the UK, showed that above 60% lung function, chances of a normal pregnancy are very high. Also they found that in some mothers lung function actually improved after birth, as mothers had tried so hard to look after there lungs especially during pregnancy.
Hope someone can help soon
All the best