Standard lactation care is provided by postpartum RNs on the inpatient unit and RNs who are board certified in lactation (IBCLCs).Postpartum RNs provide support to all patients post delivery with direct breastfeeding, breast pump use, and addressing routine breastfeeding concerns. IBCLCs provide direct lactation care for more complicated lactation problems and is delivered in a dosed manner based on the nature of the lactation problem, with low-risk patients often having no encounters.

In addtion to normal standard of care (as described above), patients will also receive clinically-integrated breastfeeding peer counseling (ci-BPC) from a Peer Counselor at four timepoints throughout the perinatal period. The encounters will take place either in person or virtually and include: an intake encounter between 2- and 30 weeks gestation, a dedicated prenatal infant feeding education encounter, at least one inpatient encounter post-delivery during the delivery admission, and at least one postpartum encounter. Patients will also have access to a "warmline" that will include phone follow up by the next business day.

Clinically-integrated breastfeeding peer counseling (ci-BPC) is a practice that, supports the patient and the clinical care team by delivering culturally-appropriate breastfeeding help to motivate breastfeeding initiation, intensity, and duration, inspiring confidence for patients to set breastfeeding goals and meet them. ci-BPC is delivered by community health workers who have breastfed an infant, and have received basic training in breastfeeding support through a qualified BPC training organization. For this project, the Peer Counselor will make initial contact to patients randomized into the treatment arm via phone to schedule the Intake Encounter between 20 and 30 weeks gestation. Subsequently, each patient will receive a minimum of 3 additional encounters which can occur virtually or in-person. Patients randomized to the ci-BPC arm are additionally offered access to a "warmline" where messages will be returned by the next business day.

Total length of time in weeks that breastmilk feeds were provided to the infant, collected via participant self-report.

Total length of time in weeks that breastmilk feeds were provided to the infant, collected via participant self-report.

Proportion of infant feedings during the delivery admission that are breastmilk only. Number of breastmilk feeds will be divided by the total number of infant feedings.

Breastfeeding Knowledge Questionnaire, and questions regarding behavioral norms around breastfeeding

Breastfeeding Knowledge Questionnaire, and questions regarding behavioral norms around breastfeeding