FIELD : medicine.SUBSTANCE : invention relates to medicine, namely to obstetrics and gynecology, and can be used to predict the likelihood of a complicated course of pregnancy in the second trimester. Conduct psychological testing using informative scales of the method “Quality of life SF-36” and factors according to the test questionnaire “Big five”. They evaluate the quality of life according to the parameters “mental health”, “intensity of pain”, “emotional instability – emotional stability”, “attachment – isolation”, “satisfaction with the ecology of the urban environment”. According to the presence or absence of data weight signs assign a numerical value of the coefficient. Calculate the discriminant function f according to the formula : , where Aj is the total value of the quantitative weight attribute in points; Xj is the numerical value of the regression coefficient of the quantitative weight attribute; Bj is the numerical value of the regression coefficient of the qualitative weight attribute X1 – “mental health”; 0.111 is the numeric value of the regression coefficient of this feature; X2 – “intensity of pain”; -0.014 is the numerical value of the regression coefficient of this feature; X3 – “emotional instability – emotional stability” 0.287 – the numerical value of the regression coefficient of this feature; X4 – “attachment – isolation”; -0.309 – the numeric value of the regression coefficient of this feature. B1 – assessment of the ecology of the urban environment, 24.339 is the numerical value of the regression coefficient of this attribute for the assessment of the ecological environment “excellent”; -5.052 “very good”; -4.568 “good”, -5.605 “mediocre”. Determine the value of the probability of attributing an individual to a group with a high or a group with a low probability of developing a complicated course of pregnancy P according to the formula : P = 1-ef/(1+ef) where e is a mathematical constant equal to 2.72. With a P value close to 0, a low is determined, and with a P close to 1, a high probability of developing a complicated course of pregnancy.EFFECT : method provides an increase in the accuracy and informativeness of prediction by identifying additional factors affecting the course of the gestational process, childbirth and the condition of the newborn, and also allows the formation of a group of increased obstetric and perinatal risk.1 cl, 6 tbl, 1 ex