This study is among those interested in psychological well-being in pregnant women, exploring the explanatory value for well-being of some parameters such as health consciousness, prenatal expectations, self-perception, taking into account age, and the existence of a preference for birth through caesarean section. In this study voluntarily participated 197 pregnant women (aged between 17 and 46). The questionnaires used were entered in an online form, this form was posted on Facebook groups specific to pregnant women, regardless of age or trimester. In agreement with the first hypothesis (H1) of our study, a significant positive relationship was measured between psychological well-being and health consciousness (c' = .155, p = .0236 < .050). It was also found that health consciousness explains psychological well-being (c' = .155; p = .0236<.050; [.0845; 1.1601]) and prenatal expectations has a partial mediator role in this relationship (a2*b2 = .046, 95 % CI [.0069, .0957]), confirming the hypothesis H2. Moreover, the hypothesis that age (r= .221; p = .0003 < .050) and preference for cesarean (r=-.185; p=. 0026 < .050) are significant covariates of the psychological well-being of pregnant women was confirmed (H4). Our study analyzed the factors that lead to psychological well-being of pregnant women, that would improve the development of the fetus and at the same time a positive development of social emotional learning (SEL) programs.