Implantation?

So I’m 8dpo and I just got home and noticed some light brown discharge in my underwear. I’m not expecting AF for another 6 days but I always get brown discharge first. I’m super discouraged cause we’ve been TTC a while and everyone around me is pregnant. I’m trying to trick myself into thinking it’s probably implantation but I know it’s not super common to get implantation bleeding. My periods are super regular too. Has this happened to anyone? I’m trying to stay positive.