Inclusion Criteria:  Women ≥ 18 years of age Pregnant at time of enrollment Plan to breastfeed their infant following birth Plan delivery at Mayo Clinic Hospital One or more flat, inverted or retracted nipple diagnosed by a healthcare professional  Exclusion Criteria:  History of breast surgery or nipple piercings History of significant low milk supply requiring discontinuation of breastfeeding prior to six weeks postpartum History of preterm labor and/or birth History of high-risk medical condition that increases patient risk for preterm labor and/or birth History of Raynaud's syndrome and/or hypersensitivity to palpation of breasts Current multiple gestation pregnancy Active rash, infection, or lesions on the nipple at time of initiation of Supple Cups