It will help you determine the most favorable/unfavorable days for conceiving a child.
★ Set the first day and the duration of the cycle with 1 click
★ Each menstrual cycle (including duration) will be stored in the database that will be available at all times
★ You can export/import yours previous data about menstrual cycle even if you change phone/tablet
★ Simply and minimal UI for better usability
WARNING: It is not recommended to use this calendar to avoid pregnancy! There are more accurate methods, like measuring the basal body temperature or use the more common contraceptives methods.