A woman’s milk can dry up while she is still breastfeeding, according to Laurie MacLeod, certified nurse midwife in the department of OB-GYN at Ohio State University’s Wexner Medical Center. Factors such as stress, dehydration, an inadequate latch or infrequent feedings can contribute to a low milk supply, she says. “This also happens with mothers who are supplementing with formula because the infant gets full from the formula feeding and may be less interested in breastfeeding,” says MacLeod. Medications, such as decongestants and some birth control pills, can also contribute to milk drying up. Consult your doctor or lactation consultant to identify causes of a diminishing milk supply.