What is this??

Danielle
Pos ovulation test on CD18 and now on CD27 - AF due on 5th Aug. Had v light bleeding when wiping and some brown in cm when checking. Im having v dull cramps too. Is it possible my period is making an early appearance or is it uncommon for the wait to be less than 2 weeks? Only came off BC at the end of April so still getting into the swing of things.