Yes, as Bill said, all of your children will be carriers. There is some evidence that carriers can exhibit some of the symptoms of CF, particularly digestive and sinus issues. It also may put them in a sticky situation if they decide to have children of their own. Finally, although it's not as risky as a female with CF reproducing, you have to consider what effect having children will have on his health. Kids bring home germs from school, they require a lot of attention and energy etc. Sure, it's possible and many choose to go down that road. However, sometimes the biological desire to reproduce masks risk factors and there are those on this forum who have unfortunately paid with their lives.
In the end, it's your choice, I would just prefer it to be a very informed one.
In the end, it's your choice, I would just prefer it to be a very informed one.