Sorry if this has been answered before, but my search function is buggered.

What is the oldest age a woman can have a baby? Is it as long as she isn't elderly? I thought I read somewhere it was 50 but I'm hoping I'm wrong because I have one tribe where they all died except one woman and two little boys. With great effort I managed to keep them all alive and now the boys are finally of breeding age the woman is 57. I have the second level of medicine so she isn't elderly but the love shack doesn't seem to be doing anything lol.

Have I just been unlucky and should I keep trying or is my poor little tribe doomed.