The Flo app functions as a comprehensive health and cycle tracker, allowing users to monitor physical and emotional symptoms alongside menstrual cycle data. Logging sexual activity is a core feature that contributes to the accuracy of cycle predictions and provides context for overall health patterns. This process is easily accomplished through a few simple steps within the app’s interface.
Locating the Tracking Interface
To begin the logging process, users typically navigate to the main dashboard of the Flo app, which displays a summary of the current cycle status. The primary input function is generally accessed by tapping the large “plus” button, usually located at the bottom of the screen. This action opens the comprehensive logging menu, which includes categories for symptoms, mood, and activities.
From the list of loggable events, the user selects the category dedicated to “Sex” or “Intercourse.” This step transitions the user from the general symptom tracker to the specific entry screen for sexual activity. Selecting the appropriate date, if the activity was not on the current day, is the first parameter to confirm before entering the specific details.
Entering the Sexual Activity Details
The most significant detail required by the app is the distinction between protected and unprotected sex. This input is a data point that directly influences the app’s predictive algorithm regarding the fertile window and pregnancy chance. Logging “unprotected sex” informs the app that sperm may have been introduced. Because sperm can remain viable in the reproductive tract for up to five days, this data is used to refine the estimated fertile window.
Beyond the protected status, the app offers several optional fields to provide a more holistic log of the activity. Users can record details such as the level of sex drive, intensity of the activity, or any associated physical symptoms experienced afterward. These optional entries, including mood or specific physical sensations, help the user and the app identify correlations between sexual activity and the body’s cyclical changes. By recording these specifics, the user contributes detailed information that enhances the personalized insights provided by the app’s data analysis.
Managing Past Entries
Users can easily review and modify any previously logged sexual activity by navigating directly to the calendar view within the application. Tapping on a date already marked with a sexual activity icon will bring up the entry screen for that specific day. This is useful if a detail, such as the protected status, was logged incorrectly or if additional symptoms need to be added retrospectively.
Once the previous day’s entry screen is open, the user has the option to edit the details or completely delete the log. This flexibility allows for the correction of errors and ensures that the data used for cycle predictions remains as accurate as possible. The ability to manage historical data maintains the integrity of the user’s cycle history.

