Cycle calendar, logging a day and history

Read the month, log any day, fix your period days, and look back at your past cycles.

The month under the card shows your period as a band: solid for days you logged, soft for probable days, striped for predicted days. Today has a dark ring.

1. Tap a day. Switch on Period today and, if you like, pick How much?. Spotting is separate.
2. Add symptoms, like Nausea or Low energy, and a mood. Tap Done.
3. Use ‹ › to go to the day before or after. Clear day empties a day, with Undo.
4. To fix many days at once, tap Edit period days at the bottom of the calendar. Tap the days, then Done.

History on the Cycle screen shows a bar for each cycle, your shortest and longest cycle, and Patterns counted from what you logged.

Note: Days to come can't be logged.

Updated 16 October 2026