Pregnancy is possible with atrial defect, patent ductus arteriosus, pulmonary stenosis, aortic constriction, aortic valve disease, and tetralogy of Fallot. The rate of maternal morbidity and mortality is related to cardiac function. n YHA classes I and II, the morbidity and mortality rate is 014 % , and up to 618 % in classes III and IV. The fetal morbidity and mortality rate also correlates with maternal cardiac function class, which is 0% in N YHA class I and up to 30% in class IV. Atrial defect, diastolic aortic valve, and aortic constriction have little effect on the rate of pregnancy-related morbidity and mortality, but attention should be paid to emboli and endocarditis. Pulmonary hypertension greatly increases the rate of maternal mortality in pregnancy, and the rate of maternal mortality in Eisenmenger syndrome can range from 30% to 70% during pregnancy and after delivery. The risk of pregnancy is not high in congenital heart disease after surgical correction, but it is also associated with cardiac function. There is also a relationship between the amount of residual defects that remain after surgical correction. Fetal mortality is related to the state of the mother’s cardiac function, the presence or absence of cyanosis in the mother, and the use of anticoagulants after delivery.