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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
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Your average cycle length (days)
How long did it last (days)?
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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.
Illustration depicting the phenomenon of period poops and its causes.
Periods are messy. They affect our health, moods, and well-being, and they are just annoying to deal with. From painful cramps to pimples and bloating, our hormones just won’t give it a rest. In this article, we look into a little-discussed but common phenomenon—period poops. That’s right, as if bleeding, pain, and mood swings weren’t enough, being locked in your bathroom for hours can be the cherry on top.
Sleeping peacefully during menstruation: Strategies to tackle insomnia and fatigue.
Feeling exhausted when your period starts? You are not alone. Lack of energy just before and during menstruation is very common. Many women feel sleepy and lethargic during that time of month. To live through this phase of the menstrual cycle more serenely it is important to understand what is happening in your body and to take good care of yourself. Finding the right solution for menstrual insomnia means solving a great contradiction: what exhausts you during the day, prevents you from sleeping at night.