Participants will received the postpartum usual care at the Sexual and Reproductive Health Service (ASSIR).

Participants will received the postpartum routine usual care plus two psychoeducative intervention WWWT sessions at the Sexual and Reproductive Health Service (ASSIR).

"What Were We Thinking" (WWWT) is a highly structured, interactive, gender-informed, couples-based, psycho-educational program for parents and a first newborn to promote confident parental caretaking, optimize functioning in the intimate partner relationship and improve infant care manageability.

The adaptation of the WWWT programme (Catalan and Spanish version) comprises 2 sessions, each lasting 2 hours, that will be designed for groups of 5-7 families - within the first 6 weeks postpartum -, each consisting of mother, partner (or other caregiver) and their infant(s).

The Mini-International Neuropsychiatric Interview (MINI) is a brief structured interview designed for the detection and diagnostic guidance of major Axis I psychiatric disorders as defined by the Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) and the International Classification of Diseases, 10th Edition (ICD-10). It has an administration time of approximately 15 minutes and is divided into 16 modules, identified by letters, each corresponding to a diagnostic category.

The Edinburgh Postnatal Depression Scale (EPDS) is a 10-item self-report questionnaire that is used as a screening instrument and for research purposes. Item scores are summed up to a total score (from 0 to 30 points), with higher scores indicating a higher depressive symptom burden. At a cutoff value of 11 (EPDS ≥ 11), the sensitivity of detecting a clinically significant depression is 0.79, the specificity is 0.95, and the positive predictive value is 0.63. The scale has a good internal consistency (Cronbach's α = 0.81).

The Beck Depression Inventory (BDI-II) is a 21-item self-report instrument designed to assess the severity of depressive symptomatology. In each item, the person evaluated must select the phrase that best describes their condition over the past two weeks from a list of four options, with seven alternatives in items 16 and 18. Each item is scored from 0 to 3 points, with the total score ranging from 0 to 63, with higher scores indicating a higher depressive symptom burden.

The Generalised Anxiety Disorder Screener (GAD-7) is a 7-item self-report scale used as a screening instrument measuring symptoms of generalized anxiety disorder that has been recommended as brief screening measure for perinatal anxiety. Item scores are summed up to a total score (from 0 to 21 points), with higher scores indicating a higher anxiety symptom burden. There are no cut-off points established for the Spanish version. In the original version, the authors propose a cut-off point of greater than or equal to 10. For the Spanish version, a Cronbach's alpha coefficient of 0.93 was obtained. Considering the 10-point cutoff, sensitivity values of 86.8% and specificity of 93.4% were found.

The Postpartum Bonding Questionnaire (PBQ) is a 25-item self-report questionnaire used to evaluate the alterations of the maternal-filial bond in the postpartum period. It includes 4 subscales, with a total of 25 items, which are rated by the mother on a Likert-type scale from 0 to 5. The subscales are general factor, rejection and pathological anger, infant-centered anxiety, and incipient maltreatment scale. The Spanish adaptation and validation has an adequate psychometrics property for use with clinical and general population of Spanish puerperal women. The PBQ could be summarized in a general factor and that the use of the total score of the scale would already be useful to detect alterations in the mother-infant bond (Cronbach's alpha reliability value of 0.90). A total score of 26 or more would indicate some type of attachment disorder, and a score of 40 or more would indicate the presence of maternal rejection or a severe attachment disorder.

The Woman Abuse Screening Tool (WAST) is 8-item self-report screening instrument for intimate partner physical, emotional and/or sexual violence. The items are answered on a scale of intensity or frequency of 3 degrees. The maximum score range of the scale ranges from 8 to 24, which is obtained from the sum of the responses of the 8 items of the scale. Higher scores indicate a higher risk of partner abuse. The scale It was translated and validated in Spanish population and finding good internal consistency (Cronbach's α = 0.95).