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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!
Untangling Delays: Exploring Reasons Behind a Late Period.
A regular period is a sign of overall good health. If it doesn’t arrive when it should, we worry. Most women experience some variability in their menstrual cycles. How familiar are you with yours?
Illustration of a skincare routine tailored to different phases of the menstrual cycle.
Do you notice more skin breakouts a few days before your period kicks in? Or perhaps your skin is duller and drier on the first few days of your cycle? That’s because your menstrual cycle impacts your skin’s health and appearance. In this article, you’ll learn how different stages of the menstrual cycle affect your skin and tips to adapt your skincare based on your cycle phases.