Most of the country's doulas are in private practice, but BirthPartners matches women with doulas when they arrive at the hospital in labor.
Ballen explained that women receive doula care in situations based on availability, risk or isolation during delivery.
Unlike the flurry of latex-gloved doctors and nurses checking vitals and measuring progress, the doula is focused solely on the woman in labor, answering her questions, helping her breathe and running interference with concerned family members.
Ballen said the benefits of having a doula aren't restricted to a calmer waiting room. "(Women who have doulas) use less pain medicine because they don't seem to need it," she remarked, grinning. Effects extend from a lowered risk of needing a Caesarean section to less post-partum depression, she said.
Ballen attributes the benefits to the hard work of doulas, whose job description calls for them to comfort and encourage women in labor. Doulas provide quality support with no agenda. "Whatever the woman wants, the doula will see what she can do to create that kind of situation."
BirthPartners' volunteer doulas are ordinary members of the community, retired nurses and graduate and undergraduate students who have undergone vigorous training: required reading, childbirth classes and 18 hours of doula training.
Junior Janaka Lagoo did just that and now signs on for the 12-hour commitment whenever she has the opportunity.
"When you do commit your time, it's a huge amount of time," she said. "You come in with a patient, and you want to be there for the whole delivery. It'll be six hours or 20 hours, you want to stay."
Since she finished her training at the end of her sophomore year, Lagoo has worked with nearly a dozen mothers and has fallen more and more in love with her work. "I really feel that doulas empower women in birthing situations to be able to voice their concerns," she said.
Nicole Fouche is a graduate student who is 33 weeks pregnant. At the moment, she is more concerned about getting help in the delivery room than getting her doctorate in biochemistry and biophysics.
"I think my decision (to get a doula) was based on the fact that I want a natural birth and that I'm pretty much doing it alone," Fouche said.
With no older parent figure to walk her through the birth, she's grateful for the company.
To get the day's news and headlines in your inbox each morning, sign up for our email newsletters.
"I know that they're considered volunteers," Fouche said. "I know volunteers don't just have the expertise but also the enthusiasm, which also makes a difference because they're choosing to be there."
And Young says they've always been there.
"Doulas have always been around, but not with that formal name," she said. Young said that traditionally, there always has been an extra pair of hands at birth. "(She) may have been a mother or sister or wisewoman - it wasn't just a midwife, it was another woman there for comfort."
Young said that after birth began to be commonly practiced in hospitals, women lost that social and emotional connection.
"Women were taken and kept in fairly good isolation ... but what they didn't understand was that women were also being separated from their social net.
"Women only recently are starting to reclaim that."
Contact the Features Editor at features@unc.edu.