Placenta praevias, IUGRs, high order multiples, cervical incompetence, placental insufficiency, cholestasis of pregancy, breech, Pre-eclamptics, eclamptics, women with pre-existing serious medical conditions,
grand multiparas, women with BMI over 40, extreme prematurity, foetal abnormalities...
I don't know personally know very many people who have being
a grand multipara as their primary goal for their time on earth, but if I were to get onto some of those NCB boards for some other reason — trying to find out more about what my mother was ranting about, for instance — I imagine I would become exposed (directly or indirectly) to some of their thought processes pretty quickly.