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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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Dealing with Your Period in an Emergency: Tips and Strategies for Crisis Management
Life can be extremely unpredictable. Unfortunately, there is no pause button for your period when life gets turned upside down, even in a real disaster. This article will give you some ideas for managing your period, even in an emergency.
WomanLog app – safe and private period tracker, does not share or sell user data
At WomanLog, your personal information is always private and secure. We never share or sell your data to third parties. Your privacy is our priority. You can also read an independent study that confirms this.
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.