I had brown discharge for a day then i woke up and it was gone about a week ago. i still haven't had my period. should i see a doctor?

Pregnancy Test: Please do a pregnancy Test. Yes, you can see a doctor. They will probably tell you the same thing unless your doctor has same day appointments. If your test is negative, you can wait a few weeks to se your doctor. If exposed to pregnancy, it is best to be on prenatal vitamins. Good Luck.

Not necessarily: I would take a pregnancy test at home - if it is negative then I would simply see how the next 1-2 months go. If your period continues to be irregular, then see a GYN. Be sure to keep a calendar with your menstrual symptoms - bleeding, spotting, discharge, cramps, etc.. That is helpful to the doctor.