Creighton Model FertilityCare™ System
www.creightonmodel.com
The CrMS relies upon the standardized observation and charting of biological markers that are essential to a woman's health and fertility. These 'biomarkers" tell the couple when they are naturally fertile and infertile, allowing the couple to use the system either to achieve or to avoid pregnancy. These biomarkers also telegraph abnormalities in a woman's health. The CrMS allows a woman to unravel the mysteries of the menstrual cycle.
Couple to Couple League
http://www.ccli.org/
The Couple to Couple League (CCL) is an international, interfaith, non-profit organization dedicated to teaching Natural Family Planning (NFP) to married and engaged couples.