2. Chart daily at the end of your day, and chart the most fertile sign observed that day.

It is a good habit to chart your observations at the end of every day. Missing days of charting reduces your confidence, and your accuracy for identifying fertile and infertile days. Keep the chart by your bed or some other place where it is accessible for charting at the end of each day, and where you will likely see it to be reminded to chart. Make sure to note the most fertile sign of the day.

The most fertile sign is a sensation of lubrication alone or any Peak-Type mucus that you finger test of the tissue. Any Non-Peak mucus is the next most fertile sign. Dryness with nothing that can be finger-tested is the least fertile sign.

ALL MUCUS IS FERTILE: sperm will live longer and happier in Peak-Type mucus but they will still live in Non-Peak mucus.

If you wish to make notations of observations other than the most fertile on any single day, do so if its helps you understand your process better. However, in that case circle the most fertile sign to differentiate it from the other notations. It might be less confusing to mark observations other than the most fertile sign in the miscellaneous symptoms, stress and illness section of the chart.