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What's known as the menstrual cycle?

You’ll have a period approximately once a month. It will last 3 to 8 days and then there’ll be a 28-day break (between 21 and 35 days is normal too) until it’s time for another period. The whole thing takes as long as it takes for the moon to travel once around the earth! This is called the menstrual cycle.

The length of the menstrual cycle varies from one person to another, as does the number of days that you bleed. Some women only bleed for a few days, whilst others bleed for more. (But if you bleed for several weeks at a time, it might be a good idea to go and see the school nurse.)

The menstrual cycle is often irregular when you’re young. This means that it’s difficult to know exactly when your period will start and that several months can sometimes pass between the weeks when you have a period. This is normal and will sort itself out with time. The Bodyform Period Diary can help you keep track of when your period comes, when ovulation happens, and what’s happening in your body. And it can send you a text message when it should be time to buy towels.

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