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Period calculator

Use WomanLog's Period calculator to predict the next period days and to understand your menstrual cycle.

First day of your last menstrual period
How long did it last (days)?
Your average cycle length (days)
How long did it last (days)?
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Your average cycle length (days)
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Period Calculator - Visual representation of a tool to estimate menstrual cycles, ovulation, and fertility for reproductive planning
Cycle tracking with an accurate period calculator can help you better understand your body and your health. Learn the benefits of using a period calculator and try it for free on WomanLog!
Woman pondering emotions during ovulation: Understanding the link between ovulation and emotional changes.
Have you ever noticed that around the middle of your cycle, your mood changes for a few days? It might be a sign of ovulation symptoms. Although the ovulatory phase of a menstrual cycle is the shortest, it’s also the most significant one.
Empowering Conversations: Teaching Kids About Periods for a Healthy Understanding.
Many young girls feel underprepared for their first period. Although most will have a general idea of what to expect, fear and embarrassment are all too common.