Effectiveness
A Science-Based Approach to Your Fertility
The Creighton Model FertilityCare™ System (CrMS) is a standardized method of tracking your natural biomarkers to understand your fertility with precision. Developed through over 40 years of peer-reviewed research at the Pope Paul VI Institute, it empowers women with knowledge about how the body works — whether planning a pregnancy, avoiding one, or wanting to resolve gynecological issues.
Effectiveness for Avoiding Pregnancy
When learned from a certified FertilityCare Practitioner and used correctly, the Creighton Model is 99.5% effective at avoiding pregnancy—comparable to hormonal contraceptives, without the side effects.
| Use | Effectiveness Rate |
|---|---|
| Perfect use (method effectiveness) | 99.5% |
| Typical use | 96.8% |
Source: Hilgers, T.W. et al., The Creighton Model NaProEducation Technology for Avoiding Pregnancy, Journal of Reproductive Medicine, 1998.
Why It Works
Unlike calendar-based methods or apps that estimate the fertile window, CrMS teaches you to observe and chart real-time biological signs — specifically cervical mucus and bleeding patterns — that indicate exactly when you are fertile. This makes it reliable even for women with irregular cycles.
Effectiveness for Achieving Pregnancy
For couples trying to conceive, the Creighton Model helps identify the days of fertility with precision. Studies show:
- 76% of couples with normal fertility achieve pregnancy within the first cycle of trying
- 98% of couples with normal fertility achieve pregnancy within 6 months
For Couples Facing Infertility
Creighton Model FertilityCare System™ is the foundation of NaProTECHNOLOGY® (Natural Procreative Technology) — a medical approach that uses your charts to diagnose and treat underlying reproductive issues rather than bypassing them.
Research shows NaProTECHNOLOGY® helps couples with:
- Polycystic ovarian syndrome (PCOS)
- Endometriosis
- Hormonal imbalances
- Recurrent miscarriage
- Unexplained infertility
Studies at the Saint Paul VI Institute report pregnancy success rates of 20-80% for couples previously diagnosed with infertility. And recent data reveals that per woman success rate is higher than IVF.
| CrMS Usage | Effectiveness Rate |
|---|---|
| Use of CrMS only | 20-40% (over 12 months of use) |
| With CrMS and medical treatment | Up to 80% (higher if first seen by NaPro physician) |
Why Choose the Creighton Model FertilityCare™ System?
- No medical side effects — Works with your body, not against it
- Medically informative — Your chart reveals important health information
- Empowering — You understand your cycle, not just an app
- Relationship-focused — Shared knowledge brings couples together
- Cost-effective — No ongoing prescriptions or devices
Ready to Learn More?
Schedule a free introductory session to see if the Creighton Model FertilityCare System™ is right for you!