Ovulation bleeding or implantation

Buckie

I had my period 6/12 through 6/15 and my cycle is irregular and so it’s only been a week since then and I’m getting this weird light brown spotting, it’s not enough to need a pad but I put a panty liner on just in case but what could this be? Could I have ovulated while on my period and this is implantation bleeding or maybe I’m ovulating? I also want to note im not cramping