When is the RIGHT time to have kids?

Dee
I've known my Boyfriend for 5 years we have only been actually dating for 2 months he is 25 and i am turning 21 tomorrow we are apartment shopping right now andi just heard from his uncle that he has already been looking at promise rings when is it the RIGHT time to have kids... I'm still young and in School he 25 so that's a little bit of a difference???