All good points! every Mom human or animal are different and there are so many reasons a c- cetion is needed to fix them just because a puppy was turned sideways is no reason can happen to any one does not mean she will not whelp pups on her on just fine later this is not a genictic thing, it is just mother nature. However you always need xrays afew days before the Mm is due to be on the safe side, Good post 

 good ??,s enjoyed reading this. Thank you Denise