Im thirteen.. can it b possible that i have stopped growing taller?

Im only thirteen and already started my period two years ago. all of my friends are so much taller than me and i haven't really grown much. i also used a height predictor on about.com to predict my heigt by putting my parent's height and the results were 4"10, which is the my current height. please... show more Im only thirteen and already started my period two years ago. all of my friends are so much taller than me and i haven't really grown much. i also used a height predictor on about.com to predict my heigt by putting my parent's height and the results were 4"10, which is the my current height. please tell me if it could b possible that i have stopped growing.
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