What is the need of pain during delivery of a baby? I'm not asking the physiological mechanism. I believe that nature doesn't make a process painful unnecessarily and I wish to understand the importance.
Rahu Ketu
To help make the essential arrangements for the birth of the child.
To make it simpler for you, I'll tell you what happens when the pregnant woman does not experience labor pains. It's called precipitate labor. You'll read about it in forensic and medical toxicology in second year.