Fitbit Zip Charge 3 Faq page 18

Your estimated fertile window automatically adjusts based on the menstrual cycle data you enter.
You can't edit fertile windows.
To turn off fertility predictions, see
How do I read the female health tracking
calendar in the Fitbit app?
From the Fitbit app dashboard, tap the female health tile to see the calendar with your cycle
information. The different colors on the calendar indicate various stages of your cycle. Tap a
date to see the female health details you logged for that day and other information.
Note that the gray shading indicates a month, not a cycle.
Refer to the table for more information about the calendar icons and colors:
Icon Description
Confirmed period
Predicted period
Estimated fertile
window
Estimated
ovulation day
Confirmed period
& estimated
fertile window
Selected day ring
Today ring
How do I edit my female health settings?
Meaning
Solid pink indicates a confirmed period. If you don't have your
period, you can edit the dates. See
period in the Fitbit app?
Light pink indicates a predicted period.
Solid blue indicates an estimated fertile window.
A flower inside a fertile window indicates your estimated ovulation
day.
Solid pink and blue overlapping to form purple means your
predicted period and estimated fertile window overlap.
A circle indicates the selected date.
The Today ring indicates the current date.
How do I add, edit, or delete a