Is this normal?

Ok so I have recently started taking POPs (Aka Norlyda) given to me by my doctor to regulate my period. On the direction is states, “You May have some menstrual spotting between periods.” Personally, I don’t even know what spotting may look like, but I have been having slightly red stuff coming from my innards and I’m honestly not sure what to do. Nothing hurts and I’m not pregnant. I have little cramps, but that’s about it. So is this normal? Like I’m highly concerned.