Empowering couples to embrace fertility as a gift, not a problem.
The One Flesh Initiative helps individuals and couples understand and live out God’s plan for marriage, sexuality, and life through science, faith, and love.

The One Flesh Initiative helps individuals and couples understand and live out God’s plan for marriage, sexuality, and life through science, faith, and love.
In a culture that often separates love from life, MyCatholicDoctor stands apart.
Through the One Flesh Initiative, we offer scientifically sound, Catholic-aligned fertility education and Natural Family Planning (NFP) instruction that honors God’s design for marriage and family.
We serve engaged couples, newlyweds, and those struggling with infertility — combining medical expertise with Theology of the Body and faithful formation.
Our clinicians and certified instructors teach evidence-based methods such as:
MyCatholicDoctor is the largest provider of NFP and Fertility Awareness-Based Methods billed to insurance in the United States — making faithful fertility care accessible to thousands of couples nationwide.
Contraception and artificial reproduction separate love from life — but God’s design unites them.
Through the One Flesh Initiative, MyCatholicDoctor helps couples understand fertility as a gift, empowering them to live fully and faithfully within the sacrament of marriage.
“…and the two shall become one flesh.” — Genesis 2:24
When couples live according to this truth, they find not only stronger marriages but deeper communion with God.
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Pray for our fertility educators and Catholic couples learning to live faithfully within God’s plan for love and life.
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Share this initiative with marriage prep programs, parish ministries, and Catholic schools to help more couples discover authentic fertility care.
Your prayers and financial support make it possible for couples across the nation to receive faithful, science-based fertility care that strengthens both marriages and souls.
Together, we can restore the beauty of God’s plan for love, life, and family.
When Sarah and her husband began marriage prep, they had never heard of Natural Family Planning. “I was terrified to give up control of our fertility,” she admits.
But when her doctor dismissed her concerns about irregular cycles and mood swings, Sarah turned to MyCatholicDoctor for help.
Through virtual sessions with a Marquette Method instructor and a Catholic medical professional, she learned how to track her cycle, identify hormonal imbalances, and trust that her body wasn’t broken — just misunderstood.
“I’m so grateful I trusted the Lord and said yes to something that seemed scary. My instructor explained things gently, with compassion and deep knowledge. I felt seen as a whole person — not just a diagnosis.” — Sarah
Sarah’s story is one of many. Through education, accompaniment, and faith-rooted care, the One Flesh Initiative helps women and couples reclaim their fertility — and rediscover joy in their marriage.