Nowadays the school of childbirth is one of the most important forms of antenatal education. The aim of the study was to compare some pro-health behaviours of women after courses at school of childbirth with pro-health behaviours of women without such education. A group of 129 women after courses at schools of childbirth who were hospitalized in the Chair and Department of Obstetrics and Perinatology of Pomeranian Medical University in Szczecin were introduced into the study. The control group contained 165 women who did not take part in any antenatal education. The questionnaire was a research tool; it was completed 2-5 days after childbirth and also patients' documentation was analyzed. The test results were statistically analyzed. Investigations showed that woman attending classes at school of childbirth were highly aware of pro-health behaviours during pregnancy; they often changed their lifestyle during pregnancy, they smoked less frequently, they had more appointments with their obstetricians and they earlier had their first medical visit. It seems necessary to intensify the classes of nourishing during pregnancy at schools of the childbirth, because no statistically significant differences in the increase of body mass were showed. Moreover, it is necessary to educate every pregnant woman of the hygiene, nourishing and stimulant abuse during pregnancy not only at schools of the childbirth, but also during obstetric consultation.