An OBGYN specializes in both obstetrics and gynecology. This article explores the occasions when it might be best to visit an obstetrician. Read on to discover more! Difficult Birth If you've had a previous birth that was difficult, you'll be referred for specialist support as soon as you become pregnant again, to help ensure a better outcome. Your obstetrician will be able to guide you through what to expect. There may be able to advise you about possible treatment options to reduce pain and to increase the chance of successful delivery.