Gynecologists are the doctors who devote their lives to the female reproductive system. Sometimes they also deliver babies, in which case they are obstetricians as well (ob/gyn).
It’s important to have a gyno you like and trust, because you’re telling her/him about all your sexual personal information. It’s completely normal to have a male doctor, but if you’re more comfortable with a woman, it’s fine to request one when making your appointment. And if your doctor is a man, a female nurse probably will stay in the room during the exam. If a nurse doesn’t stay, don’t be embarrassed to ask for one.