Research Aims: 1) To examine associations among OT levels, stress, trauma history, PPD, and lactation failure in the full 60-subject sample and assess whether there are differences between immigrant women and non-immigrant Latina women on these measures; 2) To quantify whether there is a correlation between ACTH, cortisol, and PPD and whether there are differences between immigrant and non-immigrant Latina women; 3) To assess the feasibility of enrolling Latinas into a laboratory-based study that includes the collection of venous blood for measurement of oxytocin, ACTH, and cortisol; and 4) Assess the performance of the Spanish language protocol and measures to identify barriers to implementation and address needed modifications prior to large-scale implementation.