Do you know your menstrual cycle?

Do you know your menstrual cycle?

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Your menstrual cycle has a great influence on your life. But what do you know about this cycle? When does it begin? How to calculate the date of ovulation? What is the luteal phase? Test your knowledge by answering these questions.

Question (1/9)

When does the cycle begin?

The first day of the rules. The last day of the rules. At the time of ovulation.