When searching for a doctor for either your pregnancy or feminine health needs, you may come across the terms obstetrician, gynaecologist and OBGYN. Note their differences to understand which type of doctor you need and why: Obstetricians Obstetricians are specialists who mostly treat issues surrounding pregnancy and childbirth. If you are planning on getting pregnant or you are already pregnant, you need to make plans to visit an obstetrician. Visiting an obstetrician when planning to get pregnant usually means you want the obstetrician to perform tests that ensure you have no underlying condition that may affect your baby or you need advice on things like what a proper diet is when pregnant and how to conduct yourself during pregnancy.