TTC bleeding confusion

I’ve had implantation bleeding with both pregnancies. This cycle (during my usual period time) I bled, more than droplets, but not enough to fill up my menstrual cup even an 1/8th of the way. That lasted one day and then done. I’m on day 2 of no bleeding when I should be having my period. I’ve taken multiple pregnancy tests but all have been negative. I’m normally super regular. Has anyone had this happen and what was the outcome? Any ideas? My cycle pic to show.