Anyone relate?

So my cycles are usually longer, around 32 days. Af wasn’t due until today or tomorrow given that info, but for the last 5 days I’ve had what started as light pink cm (so this started around 9dpo, and 6 days before af) and now it’s brown cm. There’s not been much of it and sometimes I go hours with absolutely nothing. When this first happened last week, I assumed my period was coming early. But I always start a very heavy bleed after a couple days of spotting, which never comes as early as it did this time. Then this morning while brushing my teeth, I gagged every time I got to my molars in my cheek area. Anyone had this and been pregnant?! Idk if my body is being weird or if that was implantation lol. Been trying so long idk what’s what anymore 🤦🏻‍♀️