Enter menstruation date
To enter the start of your next cycle kindly click the calendar symbol. If you know the time when menstruation began it is good to enter it also. If you don't, leave it as it is. We always enter the time of the first appearance of blood. Please make sure you enter a cycle bleeding and no spotting

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This is the
demo version of
PERIMON. It is therefore not possible to change or enter data. If you want to watch your own cycle, please
register.