I doubt the pregnancy had anything to do with her bleed. Lots of people with CF have lung bleeds at one time or another, most are not severe. She just happened to have a *really* severe one. I don't know most of the medical facts about her tragic case other than what has been reported but it is my guess that she would have had the same outcome if she wasn't pregnant. I say that because it is a doctor's duty to treat the mom first, baby second. After all, if mom doesn't survive, baby certainly won't survive. But if mom survives then baby at least has a chance. It is also possible that she lost her will to fight after losing her baby. Mental health and attitude are big components to physical recovery.
It is just so so sad. Hard to comprehend and really makes you thankful for your own life.