Hyperemesis gravidarum is really intense morning sickness for those who don't know. You can absolutely puke so much that you run low on acid in your blood and get respiratory depression or even arrest (and dehydration more obviously).

Now, I have a feeling that she mightve just had regular morning sickness that - while not pleasant and still worthy of treatment - is not life threatening. It's just, like, a conservative thing like Crowder and his "medically necessary" chest surgery (actually elective to fix his sunken chdst) that caused him to miss his childrens' birth.