While there are many, very “important" uses for charting your cycle using the Fertility Awareness Method such as avoiding pregnancy or achieving pregnancy, it can also be as simple as, “I know when to expect my period!"
This can bring quite a feeling of freedom. No longer will you wonder, “Oh, is that my period?!?" and then a few days later “Oh, wait, is this my period?" If you chart your cycle, you’ll know about 2 weeks beforehand when your period will start, and then usually you’ll know the morning of the day it will start. Pretty cool, huh?
Knowledge is Power! (Or at least knowledge won’t leave you high & dry without a pad/tampon/menstrual cup when you most need it…)