Natural Family PlanningMarquette Method in Oklahoma Our Purpose We help couples live with their God-given gift of fertility Learn More Catholic Teachings These [NFP] methods respect the bodies of the spouses, encourage tenderness between them, and favor the education of and authentic freedomCatechism of the Catholic Church 2370 Learn More Whether you are dealing with PCOS, breastfeeding, or irregular bleeding and cycles, the Marquette Method is here to help.