lol not really with their first ovulation, those are very dangerous times to give birth.
In shithole where Im from we used to respect the tradition that a girl is ready to get married and give birth when she's 15-16 years old, thats how people used to do it in most European cultures if not all of them.
Only retarded muzzies and street shitters fucked 12 year olds since the aincent times.