It's true that the majority of women have gotten their period before the age of sixteen. In fact the average age for one's period is about 12 years old, but the normal range can be any time between 9 and 16 years. If you haven't gotten your period by your 16th birthday, it's time to see your doctor to make sure nothing's wrong. Also stress or strenuous exercise can delay the onset of periods. Body changes My friend is 13 years old.
Breast development is one of the earliest signs of puberty.
Periods begin any time in the 2 years after you begin breast development. Lately I've been getting major cramps in my back, for the last week or so. I have also been experiencing discharge. They happen with certain hormonal changes. For more information about this see the our last article .