How young is too young?

Olivia • Not trying, but if it happens... I can`t wait to see what our love can create ❤️
I know this is a very controversial topic... But how young is too young to want to be pregnant?
​I personally think as long as you body is mature enough to have a healthy pregnancy and you are mature, responsible, and financially ready then that's all that matters. But other people seem to put a number to this question. 
​I'm just curious to know you guys opinions! :)