This chapter compares some definitions of motherhood, and focuses on the transition to the state of motherhood. Three theorists have described the process from different perspectives at different times so that a behaviourist model and a social model of feelings involved in the process can be presented. The experience of giving birth is thought to influence a woman’s transition to the state of motherhood. A woman’s age can influence her adaptation to motherhood. Finally, society is changing and will hopefully facilitate the acceptance of the status of mother.