The main goal of the research is to apply and evaluate the web-based preventive intervention
(the Be a Mom program), in terms of its efficacy, acceptability and feasibility (user's
adherence, dropout), and user's satisfaction. Prior to the randomized controlled trial (RCT),
the investigators will conduct a pilot trial to evaluate the preliminary version of the Be a
Mom program in high-risk women (random assignment to the intervention or to the control
The RCT will be a two-arm prevention trial. Women who have had a child during the prior month
will be enrolled in the study. A minimum number of 1000 women will be enrolled in the study.
After agreeing to participate in the study, the women will be screened for the presence of
risk factors for PPD and early-onset PPD symptoms (using self-report questionnaires) by a
researcher (licensed psychologist). In case of a negative screen, women's participation in
the study will end. In case of a positive screen (high-risk women), women will be randomly
assigned to one of the conditions: the intervention (Be a Mom program) or the control
condition. The sample will be recruited online and at the maternities of Coimbra University
Participation in the study will last 11 months. The Be a Mom program will last 5 weeks.
Participants in both conditions will be invited by the researchers via email to complete
baseline, post-intervention and follow-up (4-months and 12-months after childbirth)
assessments. Assessments will include self-report questionnaires to assess several indicators
(e.g., depressive and anxiety symptoms, dyadic adjustment, mother-child bonding, and maternal
confidence), mechanisms that may be involved in the treatment response (e.g., npsychological
flexibility, emotional regulation) and user's acceptability and satisfaction.