From the QS Blog, for discussion:
"My luteal phase went from 10 days to 16, which is a frickin' Quantified Self miracle."
There was appropriate umbrage when Apple released HealthKit without any menstruation metrics. This talk from Ilyse Magy shows the power of tracking the fertility cycle. Tracking with the Fertility Awareness Method and Kindara turned the various fluctuations of the body into signals that can help control fertilization and, as she puts it, understand how her vaginal environment relates to her emotional environment. An incredible and informative talk, it will cause you to look at cervical fluid in a whole new way.