Bright red first day of period, normally lasts 4 days. second day and so on been dark brownish but its not my normal period my pads been clean its when i wipe myself i see the brown color, what can it be? please help! not pregnant

It happens sometimes: Many women have occasional variation of their mucus discharge, some spotting between periods, a heavier period, a lighter period, a longer or shorter period, or even a missed period. Having one or two of these symptoms doesn’t necessarily mean there is a medical problem, but a visit to one’s primary care or Ob-Gyn doctor is a good idea if symptoms are persistent, recurring, or worrisome.