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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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Insights into Menopause: Understanding Signs, Symptoms, and Causes.
Menopause is the time in the life of a woman when her periods stop, signalling the end of the reproductive function of her body. Both menopause and perimenopause (the transition to menopause) are associated with a number of symptoms that can significantly affect a woman’s quality of life.
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.
Decoding Unexplained Bleeding: Seeking Answers Beyond the Menstrual Cycle.
Contraceptives, STDs, the onset of menopause—a variety of conditions can cause vaginal blood flow during any time of the menstrual cycle. An accurate diagnosis will point to the most suitable treatment for you.