Introduction. In the majority of developed nations, obesity and being overweight are important health issues. Every year, a greater proportion of young women who are overweight become pregnant. The risks to the mother and the unborn child during pregnancy and after delivery are brought up by this. The goal of this study is to identify the health risks associated with being an overweight woman, particularly the chance of giving birth prematurely. Resources and methods. The University Hospital «Maichin Dom» outpatient clinic is the setting for this prospective and retrospective study. In our study, 91 pregnant women with a BMI within the normal range served as the control group and 105 pregnant women with a BMI less than 25 kg/m2 served as the case group. Results. The case group’s mean BMI was 34.79 3.71 kg/m2, while the control group’s was 20.20 2.24 kg/m2. We recorded 24.8% (n = 26) of the 105 women in the case group who delivered their babies before term. 17.6% (n = 16) of the 91 women in the control group experienced preterm deliveries. We discovered a strong link between higher BMI and the chance of higher systolic and diastolic blood pressure. In addition, we discovered comorbidities in 24.2% of controls and 43.8% of cases. Conclusion. Preterm birth and pregnancy problems are more likely in women who are overweight or obese during pregnancy. In order to help women, lose weight before this critical stage of life, extra efforts should be done.