My period is late, but Flo just moves its prediction to the next day

Flo takes your cycle history into account and builds a probability model. Sometimes, a cycle shifts, so displaying a delay right away would not be accurate. Flo creates a window for when a period can arrive. When the window closes and a period has not been logged, the usual delay notice will be shown.

If you see a delay in Flo and would like to learn more about possible reasons for a late period, chat with our Flo Health Assistant. Tap Insights - type ‘late’ in the search field, and the dialog will be at the top of the search results. The assistant will lead you through a lot of possible factors for a late period. Our advanced chats are designed to help you better understand your body and the impact your cycle can have on your mood, energy, skin, and fitness levels.

Please note that the information provided in the dialogs is not intended or implied to be a substitute for professional medical advice, diagnosis, or treatment.