Pregnancy is a transition period (
1) when development of a woman’s maternal roles (
2) is accompanied by dramatic changes in the body and mind (
3). The experience of such changes makes her vulnerable during pregnancy (
4) to a change in and readiness to accept motherhood roles (
5). For some women, it is turned to a crisis, conflict (
6), nightmare (
7), and may even become a predisposing factor for development of post-partum depression (
8). The prevalence of post-partum depression is 0.5% - 60.5% in the world (
3) and 25% in Iran (
9), a major factor in affecting the health of women and their families (
10). Increased prevalence of suicide in mothers (
11), separation and divorce (
12), and worries about possible harm to the baby (
13) indicate the importance of the disorder. Women with post-partum depression have no sense of joy (
14). The disease affects women’s ability to care for the child (
15) and consequently reduces their ability to make emotional ties with the child with consequential negative effects on the behavior, cognition, and emotion of the child (
16). Although the association between post-partum depression and biological factors have been explained previously (
17), evidence shows that social factors are the experienced problems of the disease (
18). It is believed that post-partum depression is not a separate and independent disorder of pregnancy (
19) and physiological changes after childbirth and reduction of hormones (
20), besides increased motherhood’s accountabilities (
21), trigger the disease. What connects the events during pregnancy and after childbirth are feelings, perceptions, and images that affect the mother’s readiness to accept their responsibilities after childbirth. Previous studies were focused on the experiences of mothers with pregnancy-related distress and their trigger factors, while in societies undergoing transition from traditional to modern, young women’s expectations are affected by modernity. On the other hand, their social interactions are affected by sociocultural and gender roles in the community as well as motherhood’s role. Therefore, there are differences between the actual role and role expectations (
22). The contrast relationship between expectations and existing conditions may affect the women’s emotional experiences during pregnancy (
23). This is due to the fact that like many developing countries, Iran is undergoing a transition in the history of civilization (
24).
Understanding postpartum depressed women’s concerns and cultural-contextual backgrounds helps discover the dimensions of postpartum depression; therefore, the study was intended to explore the lived experiences of mothers with depression due to pregnancy and childbirth.