Save your last cycle date and let the app help you prepare early. Main period days appear in red, with five preparation days just before.
Today: Thu, April 16, 2026
Next predicted period: Add your last cycle date first.
Preparation window: Not available yet.
Expected period window: Not available yet.
Enter the first day of your last cycle. Keep the standard 28‑day cycle if you are not sure, or adjust it to your usual pattern. The calendar keeps your data on this device and uses soft warning days before the main date so you can plan pads, rest, travel, school, work and self‑care early.