Any pregnancy at risk of complications, whether during pregnancy or at birth, is considered to be a high-risk pregnancy. According to some research, about 20% of all pregnancies belong to this group. In such pregnancies there is a need for increased monitoring and more frequent control of the doctor. In addition, it is necessary to make appropriate tests before pregnancy. The system of maternity protection during pregnancy, childbirth and babies is called antenatal care. Comprehensive antenatal care in developed countries is considered to be one of the foundations of good social and health policy. A whole host of factors can affect the risk of pregnancy, such as pregnancy (over 35 years of age), previously unsuccessful pregnancy, diabetes, hypertension, heart failure, etc. Communication and empathy to pregnant women whose high risk pregnancy is particularly important. Such pregnant women are important to educate about all the risks and measures that need to be taken to get it done as quickly as possible. It is therefore important for doctors and nurses to achieve quality communication with the pregnant woman and establish a trustful relationship. The purpose of this paper is to examine pregnant women's knowledge of the risks of pregnancy and to examine the incidence of complications in pregnancy and at delivery. The work also deals with pregnancy habits and habits that can be harmful to pregnancy (alcohol and cigar consumption) and habits that may have a positive effect on pregnancy (physical activity and nutrition).