, Congratulations!!! That is so very exciting! In my experience, shortness of breath is common in the first trimester because of the increase in hormones. It should get better in a couple weeks and then again tougher when your belly gets bigger. I was also short of breath early on this time around. Obviously make sure you check with your doctor to rule out a CF exacerbation just to be on the safe side.
Crazy blood sugar lows (and highs) are also normal, unfortunately. The baby is taking glucose from you and so lows are really common. Keep a snack or juice on you at all times! Do you have CFRD? Your OB should keep a watchful eye on your blood sugars and help you adjust insulin if you take it. Pregnancy and diabetes is wild ride! I hope you have a wonderfully happy and healthy pregnancy!! Warmly, Janeil cystic-fibrosis.com Team Member