Smart & Connected Life Smart Watches & Wearables How to Use the Apple Watch to Track Your Fertility and Menstrual Cycle Use this helpful tool to monitor and predict your cycle by Evan Killham Writer Evan Killham has been writing about tech and pop culture since 2008. His work has appeared in publications that include Fandom, VentureBeat, and ScreenRant. our editorial process Twitter LinkedIn Evan Killham Updated on October 29, 2020 Smart Watches & Wearables Working From Home Headphones & Ear Buds Smart Home Smart Watches & Wearables Travel Tech Connected Car Tech iPods & MP3 Players Tweet Share Email Apple introduced the Apple Watch in part to promote health and wellness in users, and with each new iteration, Apple Watches gain more health features and functionality. With watchOS 6, Apple added the Cycle Tracking app to help users monitor and predict their menstrual cycles. Here's how to set up and use Cycle Tracking to monitor your periods and track fertility. To use the Apple Watch Cycle Tracking app, you'll need iOS 13 and watchOS 6 or later. How to Set Up the Menstrual Cycle Tracker Before you can use Cycle Tracking on your Apple Watch, you'll need to set it up on your iPhone. Here's how. Open the Health app. Tap Browse at the bottom of the screen. Select Cycle Tracking. Tap Get Started. A preview screen will open, explaining the app's features and benefits. Select Next to continue. Enter the starting date of your most recent period and tap Next. Select the usual length (in days) of your period and select Next to move on. Enter the length of your cycle and then select Next. Cycle Tracker measures the length of a cycle in days from the first day of one period to the day before the next one starts. On the Period Predictions and Notifications page, toggle on Period Prediction to analyze your data and predict the first day of your next menstrual cycle. Select Next to continue. Toggle on Period Notifications to receive an alert when you're approaching your next cycle. Select Next to continue. On the Fertility Predictions and Log Options page, toggle on Fertile Window Prediction to allow the app to predict your fertile window. Toggle on Fertile Window Notification to receive a notification about your impending fertile window. Tap Next to continue. Cycle Tracker sends notifications at 8:00 p.m. Toggle on Log Fertility to add information such as ovulation test results to your cycle log. Tap Next to continue. Toggle on Log Sexual Activity to keep track of your sexual activity. Select Next to continue. On the Cycle Timeline screen, solid red represents days you've logged your period. Tap Next to continue. The Cycle Timeline screen shows days marked in purple if you've logged a symptom, such as cramps or a headache, or an event, such as a test result. Tap Next to continue. The Cycle Timeline screen shows days marked with light red to represent the predicted days of your period. Tap Next to continue. The Cycle Timeline screen shows days in light blue, representing your fertile window prediction. Select Done. You're ready to enter and monitor information from your Apple Watch. Update any of these settings at any time. How to Use Apple Watch to Track Your Fertility and Menstrual Cycles Now that you've set up Cycle Tracking on your iPhone, you can enter and review information from its counterpart on the Apple Watch. Here's how. From your watch face, press the Digital Crown to open your app screen. Select Cycle Tracking. You'll see today's data and any activity predictions. Turn the Digital Crown or swipe down to make log entries in the various categories. Swipe left or right to review past entries or future predictions. Select Period to enter any period data. Enter your period data and then select Done. Select Symptoms to enter any physical or emotional symptoms you may be experiencing. Select Done when finished. Select Sexual Activity to enter sexual data, and then select Done. Select Ovulation Test Result to enter your test result data. Enter your ovulation test result, and then select Done. Select Cervical Mucus Quality to enter data about your cervical mucus. Enter your cervical mucus characteristics, and then select Done. Select Basal Body Temperature. Enter your basal body temperature and then select Done. Select Spotting. Enter your spotting information and then select done. After you've entered all your data, you'll see when you can expect your period and when the app predicts your fertile window. Scroll through the app on your wrist at any time to monitor your cycle and add more information.