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Well, there are some factors that can prevent a girl from getting her period, or cause it to be delayed. The obvious reasons are if she is pregnant, or on Birth Control. Otherwise, some factors could be sudden weight gain or loss, because it chnages the hormone levels in the body very rapidly. Some medications might cause a missed period. Stress can also result in a missed period or two. If a girl doesn't have her period for mor than thee months in a row, she should go to the doctor because that could be a sign of a more serious medical condition.

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16y ago

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