Period

Okay, I am on the pill, so you know my Periods are shorter and they come a few days late. And I realize this is a lil tmi but I was in the shower, and I thought I got it. So I put a tampon in, later I took it out there was like a little on it but not a lot. I put a new one in and slept with it. Absolutely nothing on it. But the thing is that it was a few days early for my period. So I don’t really know like what to do. I don’t know what it is. I haven’t had anything else lately soo