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Menstrual calendar 2011 - 2014.

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Ladies: enjoy this menstrual calendar for 2011-2014.

How to use it: Mark the first full day of menstruation each cycle, and connect the marks with a line. Reading left to right, a horizontal line indicates a 28-day cycle. A line sloping up indicates a shorter cycle, a line sloping down indicates a longer cycle. If there is no line that is straight, the cycle is variable.

Related entry: Menstrual calendar 2015-2018 - Menstrual calendar 2007-2010.