The three phases of the menstrual cycle are the result of four hormones. These hormones have other observable effects as well. CCL’s Sympto-Thermal Method of NFP is based on three key signs of fertility:
These are easily noticed by any woman who has learned to watch for them. As these signs are observed, they are recorded on a chart. The chart provides a daily record that can be used to identify the days of fertility and infertility. And once the fertile and infertile days have been identified, the couples apply “rules” that they learn in class and that are explained in CCL’s Student Guide to frame the boundaries between the phases of the cycle.
CCL also offers Cycle®PRO charting software for those who would like to chart electronically.
To learn NFP, find a class near you and register now!