Mark the first day of your period as Day 1
Record the last day of your period
Note the length of your cycle from one period start to the next
Track your period dates each month
Record flow level each day
Note symptoms such as cramps, mood changes, bloating, and headaches
Track cervical mucus changes
Track basal body temperature daily
Use a calendar, notebook, or period-tracking app
Record ovulation signs if relevant
Watch for irregular patterns
Compare cycle lengths over several months
Share your records with a healthcare provider if needed