You have lots of decisions to make now that you're expecting a baby, and one of the first things you'll need to consider is who will care for you during your pregnancy - an obstetrician, a family practice physician, or a certified nurse-midwife. Each has different qualifications, philosophies, practice guidelines, and areas of expertise. Your choice will depend on your health and the type of pregnancy and birth experience you want.
Each type of medical practitioner will treat you and your pregnancy differently. So before you decide on "the one," research each practitioner and practice as extensively you can.