Strange brown clumpy discharge

hi ladies! ive been quite concerned i've been having brown clumpy discharge for a month now, went to my gyno and i have no stds whatsoever i was disgnosed with pcos also i have BV im on antibiotics right now but im still having this brown disharge, its almost as brown as poop (which is weird i know) anybody can tell me what it is exactly?

could it be cause i have BV?