2. At immediate postpartum: Investigators will identify the arrival of a woman of the study to any of the five hospitals selected for the study. For the intervention group, in addition to the collection of data of health conditions of the mother and her baby, one of the IBCLC will attend and provide immediate support for the establishment of breastfeeding within the first few hours old of the baby. The IBCLC may solve all doubts of the mothers; give support, supervise and guide the initiation of breastfeeding, explain the proper grip, suggest the ideal positions to breastfeeding for both the mother and the newborn, this support it is supposed to be intensive. All these activities must be coordinated with the physicians and nurses from each of the five hospitals in order to follow the rules and requirements that each hospital has established.