But it seems you dont want a c-section but might be being coerced into it, which doesn't speak well of your support network.
I mean if theres a genuine medical reason then I guess you should consider it but if I was you and hoping for a natural delivery then id be inclined to seek out a better reason than "too short" to change my plans. Get some more info and maybe find some people from the other side of the fence for their opinion.
And get a bit of explanation on the too short thing, sounds a bit strange. Unless the implication is that too short=small pelvis= can't deliver naturally which isn't necessarily true anyway.