Perinatal depression is a major depression episode that starts during pregnancy and the postpartum period; and is an important cause of health risks in women and infants. A cross-sectional observational study was conducted with information from the records of 112 pregnant women or in the immediate postpartum period who were surveyed to determine the possible association between perinatal depressive symptoms and psychosocial factors occurring in the last year. The prevalence of clinically significant perinatal depressive symptoms using the Edinburgh scale was of 22.36%. The logistic regression model found association between clinically significant perinatal depressive symptoms (score on the Edinburgh scale≥12 and the following psychosocial factors: end of the couple's relationship (OR=6.26; 95% CI, 1.91–20.49), severe economic problems (OR=6.61; 95% CI, 1.86–23.45), and the death of a family member (OR=3.79; 95% CI, 1.12–12.74). In this study, one in four women had broken up with their partner and had severe economic problems during pregnancy, also one of ten had suffered the death of a loved one in the past year. These psychosocial factors were strongly associated with the presence of depressive symptoms with clinical importance. These finding offer the opportunity to consider psychosocial factors as a source of maternal stress that could be easily identified in the prenatal controls that pregnant women receive to identify women at risk of experiencing depressive symptoms in the perinatal period, which will enable appropriate treatment to be given to those who need it.