We live in a society where there seems to be a pill for everything, including one for birth control. This pill promises freedom, yet takes away freedom in the sense that it teaches a couple that fertility is out of their control—that they can’t master their sexual desires. On the contrary, NFP helps couples develop self-control and be free to authentically express total self-giving love to each other, especially in the sexual act.  

• Simcha Fisher, The Sinner’s Guide to Natural Family Planning, Our Sunday Visitor, Huntington, IN, (2014). For example: “Spacing pregnancies typically requires people to abstain when they don’t want to abstain, and it often requires people to step up and show love even if they’re not swept up in spontaneous passion. It requires people to be dedicated to a higher goal than their own happiness: namely, the wellbeing of their spouse and the strength of their family life. This is what’s known as ‘love.’ We are made to love. It’s in our nature. And that is why it’s called ‘natural family planning.'” (p. 124)
• Mary Eberstadt, Adam and Eve after the Pill: Paradoxes of the  Sexual Revolution, Ignatius Press, San Francisco (2012). See esp. ch. 8: “The Vindication of Humanae Vitae.”
• Christopher West, Theology of the Body for Beginners: Rediscovering the Meaning of Life, Love, Sex, and Gender, Ascension Press, West Chester, PA (2018). See esp. chapter 8: “Theology in the Bedroom: A Liberating Sexual Morality.”
• Christopher West, Good News About Sex & Marriage: Answers to Your Honest Questions About Catholic Teaching, Servant Books, Ann Arbor, MI (2018). See esp. ch. 6: “‘I Do…Not’ — Contraception”