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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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Empowering Wellness for Menstruation and Exercise.
Pain, fatigue, headaches, stomach upset… Many women find their bodies are more sensitive and prone to fatigue when they are menstruating as blood flow is often accompanied by many unpleasant side effects. So, should we reduce or stop engaging in physical activities during menstruation? The answer is no. Still, there are some nuances worth considering.
WomanLog AI ChatBot: Enhance Cycle Awareness, Symptom Tracking, Instant Information
Did you ever imagine that one day you would have a personal health assistant on your phone? Artificial intelligence (AI) is all the rage right now, and we’re just scratching the surface of how machine learning, natural language processing, and other AI technologies can make our lives easier. Although we tend to associate AI with cutting-edge technologies, there are many ways we can benefit in our daily lives, including helping you navigate information about your menstrual cycles and reproductive health.
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.