The femSense patch can only be activated on the patch application day and on the day after. The exact patch application time is essential, since the patch is only worn for a maximum of seven days during your fertile window.
You can see your patch application day in the femSense calendar. A beige patch symbol indicates a future patch application day, a grey marked patch symbol indicates a missed patch application day.
The "Today" screen also displays a countdown.
To activate your patch, simply follow the instructions in the app once you have reached your patch application day.
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