Brown Discharge?

So I was recently diagnosed with PCOS and have been put on a new birth control, which I have been taking for almost a month now. I’m pretty confident I had a cyst or two rupture last week, so I expected some sort of discharge, but it’s probably been about a week and I am still having brown discharge. Could it be the birth control or?

I know what it looks like… but it is for sure discharge.

Also I’ve recently been tested for STDs so I know it can’t be that.