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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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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.
Understanding the Impact of Cannabis on Menstruation: Exploring How Marijuana Influences the Menstrual Cycle.
Cannabis and the various products derived from it are slowly becoming legal for recreational and medicinal uses in many places around the world. The painkilling and relaxing properties of cannabis make it an enticing option for the treatment of menstrual pain and PMS-related symptoms. Interestingly, many women report noticing differences in the effect produced by cannabis products depending on where they are in the menstrual cycle. While research on the effects of cannabinoids—the active substances in the cannabis plant—is still ongoing, it is clear that the menstrual cycle has an effect on how a woman’s body reacts to outside influences, especially in the case of potentially addictive and psychoactive substances.
Understanding the Impact of Vaccines on the Menstrual Cycle.
Vaccines save lives. Thanks to the development of vaccines, we have been able to eradicate or at least control many deadly diseases such as smallpox and polio. Currently, our world is battling the COVID-19 virus, which can also be contained with vaccines. As a valuable defence against life-threatening illnesses, vaccines stimulate the immune system to create the desired antibodies, but the process creates challenges that temporarily affect the body and also the menstrual cycle.