https://www.techradar.com/news/apple-is-adding-menstrual-cycle-tracking-to-watchos-6 > Apple has announced that its new watchOS 6 will come with Cycle Tracking, enabling users who menstruate to keep an eye on their monthly cycle.  > The feature will allow users to log key aspects of their periods and fertility, even sending users notifications when their period is about to start, giving them a heads up to stock up on sanitary supplies (and painkillers).