Natural Family Planning


I am the ‘Summa Momma’! a.k.a. Christina, a.k.a. Mrs. Zelie Margaret, OP. I was raised Catholic in a classic midwestern town, the eldest of three girls. I majored in Philosophy and Theology in college, despite my original plan of being a radiologist (how God laughs, right?). After interning in Campus Ministry for a year following graduation, my new husband and I set off to Boston for graduate school. I earned a Masters in Theological Studies and began my life’s work as a mother, picking up odd parish and campus ministry jobs as I went.

In 2012, I recognized a call to deepen my vocation as a Lay Dominican. Suddenly, I found a “name” for my love of study and preaching, and I saw how being a mother and wife were a part of my apostolate as a lay woman. I am deeply passionate about sharing my love of Christ and His Church: the teachings, writings, liturgy and especially the holy witnesses of faith- the Saints.

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FertilityCare Centers of America (FCCA) is a non-profit corporation founded by the developer of the CREIGHTON MODEL FertilityCare System (CrMS), Thomas W. Hilgers MD, in 1999. CrMS is the innovative system which, for the first time, networks family planning with a woman's reproductive and gynecologic health. 

The purpose of FCCA is to unite and promote CrMS educational services through local FertilityCare Centers. FCCA manages a network of over 300 nationally and internationally affiliated FertilityCare Centers that provide instruction in CrMS. 

To ensure the quality control and standarization of all CrMS services provided, each FertilityCare Center affiliated with FCCA must have a Responsible Creighton Model Practitioner who is formally trained and certified in CrMS.

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