Hi Mandi! My name is Katie and I am 32 years and have CF. I have a 6 year old daughter who is mine. I carried her through nine months of pregnancy with my CF. I, too, am a big time runner like your husband. When I found out I was pregnant, my husband had genetic testing and was not a carrier. Our daughter is healthy and happy. The strain of pregnancy wore on my health and my PFT's have yet to return to their pre pregnancy state. The one good thing about you and your husband is that he won't have the stress on his body that a pregnancy can cause. Whatever happens, I wish you the best of luck and that your journey is a prosperous one.