I've had 4 days of brown/pinkish discharge this month instead of period stopped 4days ago pg test negative,?

It happens sometimes: Many women have occasional variation of their mucus discharge, some spotting between periods, an odd-looking period, a heavier or 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 recurring or worrisome.