theres no height that you have to be! :} everyone is different, it all depends on your genes. You have nothign to worry about.
there is not set height for any age! if your really that worried just ask you doctor next time you go. dont worry about it even if your taller than most kids in your grade highschool isnt the only place your going to be your entire life! You get older get out into the world and meet people taller than you! dont worryy! :)Wacked out height