Natural Family Planning

Magisterium

• Pope Paul VI, "Humanae Vitae."
• Pope John Paul II, "Evangelium Vitae: On the Value and Inviolability of Human Life."

Books

• Patrick Coffin, Sex au Naturel: What It Is and Why It's Good for Your Marriage
• Fletcher Doyle, Natural Family Planning Blessed Our Marriage: 19 True Stories.
• Patrick McCrystal, Who's at the Centre of Your Marriage? Jesus Christ or the Pill? Seems not to be on sale in the U.S.
• Christopher West, "Theology of the Body for Beginners."

Links

• Couple to Couple League International.
• The Creighton Model.
• Billings Ovulation Method.
• iPhone app for Billings Model.
• BillingsLife.org.
• Billings Ovulation Method USA.
• Catholic Health System in Buffalo, NY.
• One More Soul. Directory of NFP doctors.
• Pope Paul VI Institute for the Study of Human Reproduction.