Menstrual cycle tracking on the Apple Watch is not mentioned in the provided search results. However, Apple does provide a menstrual cycle tracking feature on the iPhone, which allows users to log menstrual cycle information, view predictions and history, and manage medications. To set up menstrual cycle tracking on your iPhone, follow these steps:

  1. Open the Health app on your iPhone.
  2. Tap "Browse" at the bottom of the screen.
  3. Select "Reproductive Health."
  4. Tap "Menstrual Cycle" to add the section to the app's dashboard.
  5. Fill in the required information, such as your period start and end dates, and any other relevant details.

Once set up, the Health app will provide you with predictions and history related to your menstrual cycle, helping you manage and monitor your period more effectively.