Some date cells don show a cycle day. Why not?
Cycle day will not be shown prior to the very first period you track in MyMonthlyCycles. After you add your first period, cycle day will show for that period up to the current date. As noted in the last section, cycle day adjusts itself based on the first day of the periods you track. The first day of your period is always cycle day 1. The maximum cycle day that the calendar will display is 600. If a cycle is longer than 600 days, a red * (asterisk) is displayed instead of the cycle day. Applies to both menstrual calendars.