I don't think I am a carrier (had the test that checks for the most common genes, not the full one yet), but if I am I will adopt or do IVF, if we have kids at all. That being said, if I were to accidentally get pregnant (which really couoldn't happen, but anyway) and found out the baby had cf, I would keep it. Not only do I have experience with cf, but I work every day with babies and toddlers with all kinds of illnesses and diabilities. I know it's not only about what I can handle, but what they can handle. In life there is suffering, but also joy. If you can prevent the suffering, you absolutely should, but once a life is already there (and I realize other's definition of life is different from mine and that is fine) then my belief is they are already fighting. I know personally that I will love my baby the second I know of it's existence. I highly doubt anyone feels they wish they were aborted. (I respect everyone else's opinions about this).