Why use a calendar?

A calendar lets you know exactly when your period is coming, which is handy because then you won’t have to guess or make assumptions. You can plan your period in advance, which is especially useful if you’re trying to conceive. It’s also helpful if you’re trying to control your fertility.

It can be helpful for a lot of women, especially those who have trouble remembering the exact day of their period.

A calendar is a tool to help you keep track of your menstrual cycle. It is not a substitute for a doctor, and it should not be used as a replacement for professional medical advice, diagnosis, or treatment.

A woman’s menstrual cycle is complicated, and there is a lot that goes on in your body during each menstrual cycle. A calendar cannot predict the exact day or exact moment that a woman is ovulating.