SOS!! Bleeding a week before period?

So it’s exactly a week before my period and I’ve been on birth control for two years. I missed a pill last month(but got my period afterwards). I’ve been stressed and working out everyday (which is new for me lol), could that be why I’m experiencing blood in discharge? It started yesterday and continuing through today; it’s been on and off.

I’m honestly freaking out a bit, anyone know what this is?