The Original: My Days - Period & Ovulation. I MyDays - Really! Track & predict your period, ovulation and fertility. Your menstrual calendar for young and older women. Features include: ⦿ Calendar. ⦿ Password. ⦿ Notification for coming Period & Ovulation! ⦿ Multi User support. ⦿ Multiple languages ⦿ Add personal info regarding birth control;