Changes in life roles reflect the process of reorganization of identity, which is an important component of adaptation during transition to parenthood. During this family transition gender differences are significant. Despite the fact that in Western societies women and men are encouraged to share family and work responsibilities, female self-concept is more strongly associated with motherhood, whereas men still highly value the role of a breadwinner. Therefore, relative perceived and desired salience, and directly assessed importance of main life roles (a spouse, a worker and a parent) before and after the birth of the child were examined. One hundred and eighty-seven couples participated in the study. The perceived (relative and directly assessed), and relative desired salience of a parental role increased after the child’s birth in both genders. Women valued the parent role higher than men who deemed the worker role more salient to their identity after the child’s birth. Spouse identity seemed to be created in the couple itself as both partners assessed it similarly. Inclusion of couples and repeated measurement of all variables allowed for the analysis of complex changes in self-perceptions in transitions to motherhood and fatherhood.