How to Track your Period

Written by Jen Bell

  |  Reviewed by Staci Tanouye, M.D.

It’s easy to track your period using the BLOOM Period Tracker, but you can also use a regular calendar. To calculate the average length of your cycle, mark the first day of your period, “Day 1” on your calendar each month. Then count the number of days from Day 1 of one period, to Day 1 of your next period. This number is the length of one menstrual cycle. Do this for a total of 6 menstrual cycles (around 6 months) then add up the number of days in each cycle and divide by 6 to get an average of how long your cycle is. Now you have a better idea of when to expect your period moving forward.

For example: 28 days (Cycle 1) + 29 days (Cycle 2) + 29 days (Cycle 3) + 30 days (Cycle 4) + 29 days (Cycle 5) + 29 days (Cycle 6) = 174 days

174 days/ 6 months = average cycle length of 29 days

Next time you get your period, mark Day 1 on the calendar, and then count forward the number of days of your average menstrual cycle. You can mark that day on the calendar as the expected start of your next period. But don’t worry if your period doesn’t arrive on time, it’s normal for it to take several years for your cycle to settle into a regular rhythm. Still with us? If we lost you there, no worries, it’s super easy to track your cycle on your phone or computer with BLOOM Period Tracker!

3 Reasons to Track your Period!
  1. After a few cycles, you’ll likely see a pattern. Then you can know which symptoms to expect, and be ready for them. PMS coming up? Keep some medicine in your purse or bag. Period due? Stock up on period products so you aren’t caught without one when you need it most!
  2. It is important to keep a journal about your period flow, color, and any symptoms you may be experiencing. If you’ve been having periods for a while, you know what your normal flow is. Keep track of how light or heavy your bleeding is, and any changes in color and texture. If you notice anything out of the ordinary, you have the details on hand to share with your doctor.
  3. When you’re tracking, you can note any unusual vaginal secretions that occur during the month. You may notice a thicker or stickier discharge in the middle of your cycle — this is normal and means you’re ovulating.