Keep period dates, estimated ovulation timing and fertile-window information organized in an easy-to-review cycle calendar.
A cycle calendar can place recorded period dates and estimated future events on the same timeline. This makes it easier to review what has already happened while also seeing predicted dates ahead.
Recorded events and predictions should not be confused. A logged period start is historical data; an estimated fertile day or future period date is a calculation that may change as new cycle information is added.
Menstrual cycles are not identical every month. If a period arrives earlier or later than expected, the estimated dates that follow may also move.
Keeping the calendar updated with real events helps the system base future estimates on the most recent information available.
Cycle data can be personal. Use the app and website privacy information to understand how information is handled and which disclosures apply to the service.
For the official privacy terms, use the Privacy Policy link rather than relying on summaries or assumptions about data handling.
Predictions may update when your real cycle timing changes or new information is added.
No. A calendar estimate cannot confirm that ovulation occurred on a specific date.
Use the Privacy Policy page, which links to the official privacy policy for the app.
