NFP or Natural Family Planning is the general term for natural and moral methods of family planning in the Catholic Church, inspired by the encyclical Humanae Vitae.

NFP is essentially fertility awareness because it is a means of reading the body’s natural signs of fertility and infertility. A married couple’s virtuous application of this knowledge either to try to achieve a pregnancy or to postpone a pregnancy is called responsible parenthood.

FABMs stands for Fertility Awareness Based Methods. In a Catholic context, it is often used to refer to multiple forms of moral NFP methods in line with Theology of the Body and Church teaching.

STM (sympto-thermal method) is the specific method of NFP or a FABM that CCL and Liga use to teach to couples.