Patient Education

Natural Family Planning (NFP)

Natural Family Planning (NFP) is an umbrella term for certain methods used to achieve and avoid pregnancy. In NFP, spouses are taught to understand the nature of fertility and how to work with it, not against it. NFP is based on scientific research and is highly effective, with no harmful side effects. This method calls for mutual responsibility and communication between husband and wife, and can be used in special circumstances – such as post-partum, during breastfeeding, and pre-menopause.

NFP is completely natural and does not use drugs, devices or surgery. Simply by recognizing and charting the easily observable signs of fertility exhibited by a woman's body, any participant can create a health record. With this information and by applying a few simple guidelines, a couple to avoid or achieve a pregnancy can use these observations.

Natural Family Planning: A Highly Effective Method
Couples who conscientiously use NFP and were trained by a certified NFP instructor are 98.6% to 99% effective in avoiding pregnancy, according to studies by the World Health Organization and others.

NFP has been used effectively worldwide for over 30 years. There are several reliable methods available today that offer women and couples adequate instruction and support in their use. These include the Creighton Model FertilityCare™ System, Sympto-Thermal Method, and the Billings Ovulation Method. With any of these methods, training from a certified instructor is recommended.

At the Vitae Clinic, Dr. Jeremy Kalamarides treats women throughout their reproductive years using the information they gather from charting their signs of fertility using the Creighton Model Fertility Care™ System. For more information on how to start using this method, please refer to our Classes page.


NaProTECHNOLOGY or Natural Procreative Technology (NaPro) is the result of 30 years of research by Thomas Hilgers, M.D., an obstetrician/gynecologist at the National Center for Women’s Health in Omaha, Nebraska. This state-of-the-art science has already helped thousands of women throughout the U.S. and in several other countries better understand their bodies and treat the underlying causes of their gynecological problems. NaPro provides the best in current medical care, applying diagnostic and therapeutic techniques in a way that is cooperative with the natural functions of the body. It can be used to treat a wide range of gynecologic problems including premenstrual tension syndrome, ovarian cysts, abnormal bleeding, irregular cycles and recurrent miscarriages.

Through a system called NaProTRACKING, a woman charts her fertility signs to create a medical record. With this information, a trained NaPro physician can treat gynecologic ailments in cooperation with a woman’s natural cycle. The process of diagnosis and treatment involves an ongoing dialogue between the woman and her physician, so that the cause of the difficulty can be identified and treated. Diagnostic testing and hormonal analysis can be performed in a targeted manner based on the woman’s individual reproductive cycle. Through this active participation in her healthcare, a woman becomes empowered to actively collaborate in her treatment. This approach seeks to find the cause for the disease and treat it, rather than suppress the woman’s natural cycle. Many seek the use of NaProas an alternative to treatment using the birth control pill and others simply want to learn about their fertility in a natural manner.

Centers for NaPro are located across the country and in Ireland, England, New Zealand, Canada and Mexico. Since NPT is consistent with the teachings of every major religion, it is rapidly gaining in popularity. Furthermore, since women feel so respected during the process of diagnosis and treatment, they are acclaiming the methodology by word of mouth.

For more information on NaProTECHNOLOGY and its benefits visit


NaProTECHNOLOGY takes a natural and cooperative approach to the treatment of infertility. First, it works toward assessing the underlying causes of the reproductive abnormality. Second, it allows for the treatment of these underlying causes. The causes of the infertility are assessed and treated, restoring a woman’s health. As a result, NaProTECHNOLOGY assists couples in achieving pregnancy while maintaining the natural acts of procreation. NaProTECHNOLOGY has been proven to be highly effective in the treatment of infertility due to Endometriosis and Polycystic Ovarian Disease as well as other hormonal disorders and premature birth.

Effectiveness for Infertility Treatment

Using a NaProTECHNOLOGY approach for the treatment of infertility can be highly effective and even more successful than current approaches to infertility. Below, a life table comparison is shown of the effectiveness of NaProTECHNOLOGY (in blue) with a similar non-NaProTECHNOLOGY approach taken at Johns Hopkins University. The success rates are clearly better using the NaProTECHNOLOGY approach.

[Figure 51-5, p. 682 from the textbook, "The Medical & Surgical Practice of NaProTECHNOLOGY". Cumulative pregnancy rate of patients with endometriosis treated with NaProTECHNOLOGY compared to conservative surgery only. Patients with normospermic husbands only (From: Pope Paul VI Institute research, 2004 and Rock JA, Guzick DS, Sengos C, et al: The Conservative Surgical Treatment of Endometriosis: Evaluation of Pregnancy Success with Respect to the Extent of Disease as Categorized Using Contemporary Classification Systems. Fertil Steril 35:131-137, 1981).]

This study shows the success of NaProTECHNOLOGY treatment for women with Polycystic Ovarian Disease, compared with surgery only to treat this condition:

[Figure 51-13, p. 683 from the NaPro textbook. Cumulative pregnancy rate for patients with polycystic ovarian disease treated with NaProTECHNOLOGY compared to surgical wedge resection only. (From: Pope Paul VI Institute research, 2004 and Adashi EY, Rock JA, Guzick D, et al: Fertility Following Bilateral Ovarian Wedge Resection: A Critical Analysis of 90 Consecutive Cases of the Polycystic Ovary Syndrome. Fertil Steril 36:320-325, 1981).]

Terms of Use, Copyright 2006, Pope Paul VI Institute for the Study of Human Reproduction. All rights reserved.

*"NaProTECHNOLOGY" is a registered trademark of the Pope Paul VI Institute for the Study of Human Reproduction. It can be freely used by any person or entity so long as its use reflects the medical concepts and values expressed in the textbook, "The Medical & Surgical Practice of NaProTECHNOLOGY".