What's charting? It's a person taking and keeping notes about their menstrual and fertility cycles. Those notes may be as little information as what days you get your period, may have more information, like what kind of flow you had and what discharges you experienced that month, or have just about anything and everything you can think of that does or may have something to do with your fertility cycle: your basal temperatures (a vaginal temp you take daily with a thermometer made for that purpose), your libido, your sleep patterns, the whole works. What information you include depends on what you want to observe, and what your needs in charting are.

When you hear about people charting their periods or overall fertility cycles, it's usually either about trying to conceive or using natural family planning (NFP or FAM) as a primary method of birth control. Many of you are not trying to conceive, and for younger people, NFP isn't a sound sole or primary method for you either because your ...