How much blood does it take to be a period?

Sarah

I started having some minor bleeding from a monistat treatment and thought nothing of it as it lightened up to a pink creamy discharge the next day. Since then it only mildly went up to a old blood seepish type bleed, I use a cup but I know there isn't enough to stain paper when I wipe. I cant tell if I'm cramping or not since I broke my hand and am on painkillers so fml....