Period began wed morning, one day of light bleeding followed by 2.5 days of no bleeding w normal period cramps.it usually starts light and sometimes theres 12-24 hrs of no bleeding, but never 2-3 days before. should i worry? why would this happen?

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.