Period Calendar tracks and predicts your period, ovulation and fertile window, shows your Pregnancy Chance every day, also can record intimacy, BBT and everything about woman who try to conceive, pregnant or birth control. The pill reminder won't let you miss any medication, drugs, supplements, or contraceptives like pills, ring, patch, even injection. Just like your own pharmacy, your own pill tracker. If you take meds 2 times one day, supplement or Vitamin every day, any meds of prescription medication for one month, contraceptive pill for 21 days, any meds and pill we can remind you and you will miss none. Except the basic period cycle tracker function, girls can record anything about herself such as cycles, symptoms, moods, cervical mucus, intercourse, weight, temperature, note or pills which you want birch control and etc.It is designed to be your personal period tracker light diary and sweet secretary. It is most simple period tracker for irregular periods, and regular periods, but also safe keep your secret. You can switch account if need to track different person. You can also synchronize data from healthkit, such as active energy, sleep analysis, steps, sexual activity, etc.You can read Health data from "Report" - "Timeline". Period Calendar is totally free with all features. Period tracker worth you try and won't let you down, period tracker for irregular periods. Features: Sync data to Apple Health. Support to synchronize data from healthkit, such as active energy, sleep analysis, steps, sexual activity, etc.Dropbox data backup and restoration. Cycle tracker, Period tracker for irregular periods. Unique period tracker diary design. Intimacy tracker. 43 symptoms and 64 moods to choose. Pregnancy mode when get pregnant or finish pregnancy. Notification for period, fertility and ovulation tracker. Weight and temperature charts. Period ovulation tracker, cycle tracker, fertile tracker, period ovulation tracker Log management. Fertile symptoms tracker, like cervical firmness, cervical mucus, cervical opening. Period ovulation tracker. Menstruation period, cycles, ovulation predict. Customer your personal period length, cycle length and ovulation, for irregular periods. Choose 1, 3 or all month data average as period cycle length. Multi accounts for period ovulation tracker. Multi language to choose. Forums. Disclaimer: Period Calendar is used to recording and predicting the period, fertile and ovulation days. Due to individual differences, such as age, period cycle, period regularity, etc., Period Calendar may not always predict accurately. Therefore, it can be used to track your personal information, rather than as the only standard to prevent unwanted pregnancy. Natural birth control may cause unwanted pregnancy, please use safe and effective way to protect the intercourse.