Developing Fast': Britain Facing...
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No best answer has yet been selected by tatoluver. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.many possible reasons: stress, drugs, exercise. And it may be if you're young your body still hasn't fully regulated itself.
http://www.thesite.org/healthandwellbeing/generalhealth/womenshealth/missedperiods