
A friend of mine answer was " Body wants baby Body doesn't get baby Body gets revenge"

A friend of mine answer was " Body wants baby Body doesn't get baby Body gets revenge"
They release an egg every month. The egg cracks and bleeds in uterus. Takes a week to clear out.
Please learn basic anatomy and physiology. This is basic stuff everyone should know.
In big shortcut: it allows women to have babies.
FORUM ADVICE
You need to attend further Human Biology lessons.
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