Help?!?

So I got my period the day I was suppose to, its scheduled because of my nuvaring. But this month it’s super light, it didn’t even fill up my pad (leaves blood the size of a quarter, a bit more or even less). It was bit red yesterday but hardly anything, it’s just been dark brown (old blood). Whenever I wipe, there’s a bit of old blood. I’m never this light and its suppose to end Monday, but it keeps looking like less blood each time to go to the restroom, I’m still got symptoms like some cramps, bloating and fatigue and cravings sweets and discomfort but it’s never been this light before. It’s always brown in the beginning and turns really red during the middle days and towards the end it gets brown again. Has this happened to anyone else? Is this a real period? I just want to know if this is normal or not