Simple menstrual calendar - The Day Reduce useless features A menstrual calendar made with only the features women need - The Day! Just check it out now! ♡ Menstrual Calendar - The Day feature ▶ Month calendar and year calendar - You can easily check at a glance with a monthly calendar and yearly calendar. - You can display only the days you want to see among menstruation, fertile, and ovulation days. ▶ Easy to input - You can easily input, edit, and delete with a simple touch. ▶ How long un