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Hello Anonymous,

Welcome to EmpowHER and thank you for reaching out to our community for advice.

Anonymous, for now, I would take a wait and watch approach. Should the time interval between periods increase to three or more months, ask your parent to contact your pediatrician's office. The concern would be to rule out a hormonal issue such as PCOS, polycystic ovary syndrome, which is a common endocrine system disorder.

Girls usually start to go through puberty between the ages of 8 and 13. When a girl first gets her period, doctors call it menarche. Menarche doesn't happen until all the parts of a girl's reproductive system have matured and are working together.

The amount of time between a girl's periods is called her menstrual cycle (the cycle is counted from the start of one period to the start of the next). Some girls will find that their menstrual cycle lasts 28 days, whereas others might have a 24-day cycle, a 30-day cycle, or even longer. Following menarche, menstrual cycles last 21-45 days. After a couple of years, cycles shorten to an adult length of 21-34 days.

Irregular periods are common in girls who are just beginning to menstruate. It may take the body a while to sort out all the changes going on, so a girl may have a 28-day cycle for 2 months, then miss a month, for example. Usually, after a year or two, the menstrual cycle will become more regular. Some women continue to have irregular periods into adulthood, though.

Regards,
Maryann

December 21, 2015 - 9:36am

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