Introduction:
The aim of the study was to evaluate the frequency and severity of a sense of uncertainty concerning important determinants of human existence in selected groups of young women in Poland and the Czech Republic, when they found themselves to be at the right age to have children.

Material and Methods:
Data were obtained based on a self developed questionnaire. The study involved 42 nursing students in the second year of studies in Poland and 51 nursing students in the Czech Republic. The average age in these two groups was 21.7 and 22.8 years respectively The results were analyzed statistically using the chi-square test.

Results:
Polish young women in comparison to Czech women are more often afraid of considerable nuisance problems with future work, unsatisfactory relationships with future partners, and a sense of forthcoming impending dangers.

Conclusions:
The results suggest considerable uncertainty with regard to important spheres of human existence among young people. In the light of similar observations made by authors from countries of different economic standard, the insecurity is only one affecting factor among others. The results indicate the advisability of undertaking research on different approved models of the family.