(CNN) -- Mom-to-be Maggie Baumann knew she most definitely would not be "eating for two." She couldn't. During her first pregnancy, she was extremely preoccupied with just how many calories she consumed and stuck to a very strict exercise routine. "Getting on the scale at the doctor's office was very triggering for me," said Baumann of Newport Beach, California, who is now an eating disorders specialist and trauma therapist who devotes some of her practice to pregnant women and moms suffering from eating disorders. She gained 32 pounds during her first pregnancy, which is very much in line with the...