I am sure at one point and time that your bf has been told since he has CF, he is most likely sterile. This most likely can be discussed with the CF doctor and care team at the clinic for more direct answers.
I do know a few males that have CF and they have told me they are sterile.
Hope this helps.
Kathy, mom to identical twin boys with CF (9yrs), daughter 20, grandaughter 2 1/2, one on the way!
If there is a CURE for Cystic Fibrosis this very moment and this is "not soon enough"...you would hear this twins mom "Across America" "YESSSSSSSSSS"!!.
Moderator, Cystic Fibrosis. "If there is questionable doubt, check it out"....with your healthcare provider!. We are here to offer support, encouragement, and answer your questions as best we can. Don't hesitate to step on in and enjoy!.