See your doctor: At age 13, it's common to have months go by without a period. The communication between your brain (pituitary) and ovaries (where hormones controlling period are made) is still maturing. Unless you are at extremes of weight (thin or heavy) you likely needn't worry. If you are worried you can see your pediatrician or a gynecologist, but likely they will tell you everything is okay.
Answered 8/1/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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