We recommend entering your period for the full duration of your flow, including the days when you experienced start/stop behavior.
Because MyFLO is constantly calculating and recalculating your cycle and phase lengths, entering multiple periods with one or two days between - rather than one long period - will likely result in incorrect outputs. If this did occur for you, no problem! Simply use the "undo" button again to change last month's period so that it's accurate. Then use the "my period started" button (bright purple, top center of your calendar) to schedule a new or current period.
To track the on/off flow, at the top of your menstrual data entry screen, you will see the option to track the volume of your flow: light, medium, or heavy. Enter the volume on the days when you had a flow, and on the days you don't, track nothing.