Provide care for high-risk pregnancies (e.g. carrying twins). A referral to see an OB is needed. OBs are doctors with special education and training in the medical management of pregnancy, labour, and birth. They are qualified to manage complications. In the Comox Valley, an Obstetrician does not provide primary maternity care but will act as a consultant to your Family Doctor or Registered Midwife if you experience complications.