Objectives:
Introduction. The occurrence of early preterm risk is a difficult, stressful and stressful situation. A pregnant woman may have difficulty coping with the new situation because the psychological processes that prepare the mother for the birth of the child are interrupted.

Objectives:
To determine the level of stress in pregnant women with threatened premature delivery depending on sociodemographic factors

Material and methods:
The study covered 100 pregnant women between 23–37 weeks of pregnancy in the pregnancy pathology departments at the Independent Public Clinical Hospital No. 4 and the Independent Public Clinical Hospital No. 1 in Lublin, who were threatened with preterm delivery. The study design received a positive opinion from the Bioethics Committee of the Medical University of Lublin (No. KE-0254/339/2015). A diagnostic survey method was used to carry out the research using a standardized research tool – Perceived Stress Scale (PSS-10) and a self-prepared questionnaire.

Results:
The highest (38%) of the surveyed pregnant women with threatened preterm delivery experienced average stress levels, 36% experienced high levels of stress, and 26% a low level. Sociodemographic factors such as age, marital status and material conditions did not determine the level of stress experienced by pregnant women. Women with higher education had a lower level of stress than women with basic or vocational or secondary education

Conclusions:
The examined pregnant women with threatening premature delivery mostly experienced average and high levels of stress. Education was a factor conditioning the level of stress in the studied group of women.