NaPro technology is a natural method of monitoring all aspects of women's health, and we would emphasize it in infertility issues. The name was created as an abbreviation of Natural Procreative Technology, and as a new reproductive science, was officially published in 1991, although Professor Thomas Hilgers has been developing and refining it for a very long time, since the 1960s. Our gynecologist assistant professor Erceg Ivkosic is the only one licensed Natural Family Planning Medical Consultant in Croatia after completing the Creighton Model FertilityCare System and NaProTechnology program organized by the Pope Paul VI Institute for the Study of Human Reproduction in collaboration with Creighton University, Omaha, Nebrasca, USA. She trained in Warsaw (Poland) in 2012 and 2013. under the guidance of professor Hilgers, a gynecologist at the Creighton University and founder of the Pope Paul VI institute, and accredited by the American Academy of Fertility Care Proffesionals, Blue Springs, MO 64014, USA. We cooperate with Fertilty Care Croatia and will inform you in detail when you come to St. Catherine’s Specialty Hospital.