I think centuries ago is perhaps not the best parallel to draw. Centuries ago - if something went tits up that today would necessitate c section, urgent instrumental delivery, significant intervention of any variety - that would have been the end of you, or the baby, or both. Tears would have been the least of one'a worries.
This is why it infuriates me that women are still looked down upon (albeit by a minority of people) for not pursuing a "natural" experience above all else on the basis that "your body is designed to do it".
Errrr, that's not really how it works. Yes, in principle, with the marvels of modern obstetrics you've a jolly good chance of everything going fine, but humans are rather like guinea pigs in this respect - badly evolved insofar as birth is concerned.
Before we had the knowledge and technical ability to intervene in a birth where required, you had a pretty colossal chance of not making it. So in reality, going purely by observable effect, the human birth process is "designed" to carry a significant risk of fatal failure, and a very significant risk of substantial damage e.g. obstetric fistula - which are still, lest we forget, rife in parts of the world where obstetric medicine is less advanced.