Who are some of the youngest mothers?

The youngest mother to ever give birth (although through a C-section)was 5 years old as a result of child-sex abuse. She was a girl from Peru that gave birth in 1939. Obviously this is a rare occasion and most 5 year olds don't even have a menstrual period yet. In Idaho in 2008 a 10 year old rape victim gave birth. There are several accounts of children from 5-11 that have given birth, but most of these are result of sexual abuse rather than consent.