I logged a symptom, and my predictions changed. Why?

When your cycle varies in duration, the symptoms you enter will recalculate the prediction. The more periods and symptoms you enter, the more precise Flo’s predictions will become.

Flo offers 16 trackers with more than 50 symptoms and events to log. To add your symptoms for today, tap “+” at the bottom left corner of the main screen. To see all available trackers and customize the symptoms screen, scroll down and tap More parameters.