No period for nine months

I am a girl of 17 years and have been missing my period for over nine months but I am still a virgin. What can I do?

Grace (by SMS)

In the first two years after you start menstruating (having your period), it’s normal for you to experience an irregular menstrual cycle. You may have a period twice in one month, or you may go without a period for two months at a time. Likewise, you may have your period for only 2 or 3 days one month, and the next time you have your period, it lasts for 7 days. This is normal during the teenage years. Your body is influenced by your growth (and puberty is a time of major growth), so this can change your menstrual cycle from month to month.Missed periods and irregular periods can be normal in teenagers, but you should consult a doctor if you’re a teen and you haven’t had your period for at least three months. This may be a sign of a reproductive problem, like premature ovarian failure.