Period Tracker, the easiest way to track your periods! Period Tracker is SIMPLE and CUTE. * Press a line at the start of your period every month. Period Tracker logs your dates and calculates the average of your past 3 months' menstrual cycles to predict the start date of your next period. * View your current and future period dates, ovulation and fertile days, your moods and your symptoms in a simple month-view calendar. * Decorate your Windows phone with an icon that looks great on your home screen. Period Tracker is FILLED WITH FEATURES. * Take daily notes of menstrual moods, symptoms, and fertility * Export your period dates and notes to email for doctor's visits. * See the number of days until your next period or the number of days late. * Passcode protect your information * Choose from a variety of skins * Track your weight and temperature * Backup and restore your data to an online account Disclaimer: Period Tracker period and fertility forecasts may not be accurate and should not be used to prevent unwanted pregnancy. To forecast ovulation Period Tracker calculates 14 days before the projected start date of one's next period. Forecast accuracy depends on a number of factors including how regular one's cycle length is, when one actually ovulates during the cycle, and how many periods have been logged in the app. Anxiety, stress, diet, nutrition, exercise, environment, medications, age and other factors can also affect one's cycle from month to month. The only fail-safe method to prevent unwanted pregnancies is abstinence from sexual intercourse. If one chooses to engage in sex, we strongly recommend understanding the risks and birth control options to mitigate those risks.