I had sex friday i started what i thought was my period sunday it went off then came on tuesday and went off again for good my period is always regular it was scheduled to come on that sunday and it did but went off?

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 become recurring or more worrisome.