Billings Ovulation Method, based on 50+ years of scientific research, offers a simple way for couples to plan their families.
The Couple to Couple League (CCL) is an international, Catholic, non-profit organization dedicated to promoting and teaching fertility awareness (natural family planning) to married and engaged couples.
The CREIGHTON MODEL FertilityCare System (CrMS) provides comprehensive, professional services through individualized follow-up, standardized teaching tools, and ongoing research.
Based on over thirty years of research and practical application, NaProTECHNOLOGY is a women's health science which has, as its main principle, the ability to work cooperatively with the woman's menstrual and fertility cycle.
The Marquette Model brings 21st-century technology and identifiable signs of fertility to support family planning.