Theresa and Brad Halvorsen are the parents of twin boys. Theresa is a certified childbirth educator, a pregnancy, birth and breastfeeding expert, and a former doula. She teaches pre-natal and mommy-and-me yoga classes. She runs an informational website for parents and birthing professionals called theonlybabystop.com . The Halvorsens own a center fro new and expectant parents in Sacramento, California.