What kind of doctor should i consult about a missed period?

OB/GYN or Primary: If you have missed your period you can talk to any primary care physician and likely get a good answer That includes Family Physician, Internist or Pediatrician. Many women have a regular OB/Gyn and they tend to have special focus on menses and are probably the best choice if available.

Irregular menses: It's always good to let your primary care doc know what's going on. Not infrequently women of childbearing age will turn to their OB/gyne for questions about their hormonal irregularities. Your choice - which ever is most comfortable for you.