In countries around the world, the trend of postponing childbearing is becoming more and more common. Extension of education, building a business career, financial stability, changes in social norms are only part of the reasons why young couples turn to this trend. Unfortunately, the data show that this trend is also occurring in Croatia. Also, there is an increasing reliance on medicine, which is progressing more and more over time. Although medicine is progressing, some things cannot be fixed. A woman's fertility decreases with age and it usually depends on the quality and number of eggs. Due to the action of various factors that negatively affect the reproductive potential of today's young couples, there are more and more of those who have to resort to treatment with medically assisted fertilization procedures. 340 women who were treated at the Clinic for Women's Diseases and Childbirth in Split participated in the research. Within the research, we divided the respondents according to age into two groups, over and under 40 years of age. The goal of the research was to show the success of the treatment in subjects over 40 years of age compared to subjects under 40 years of age, and to show the risks that the increased life expectancy of a woman carries. Some of the risks of pregnancy in women over 40 are ectopic pregnancy, spontaneous abortion, congenital anomalies, fetal chromosomal abnormalities, gestational diabetes, preeclampsia, etc. Pregnancy is an extremely important event in the life of every woman, and therefore it is very important to inform the general population about the risks. delaying pregnancy. A conversation with general practitioners, gynecologists and midwives will make it much easier for couples to understand the problem and teach them about reducing the chance of pregnancy with age in general, and if this pregnancy does occur, the risks for the mother and the child are multiple. It is also important for health professionals to refer couples who have a problem to medically assisted fertilization as soon as possible.