Normal ?

Is it normal to have black to brown blood for two days when you normally have a heavy period for 7 days straight ? It stopped after two days and it wasn’t clots like usually but still heavy. It stopped for a full day and half then i just spotted for one day or two and that’s it some blood spots and some were brown stringy blood. It also came 5 days early. Also just started ovulation and i have weird cramps lower stomach cramps wayyy Lower than usual and back pain. Maybe I’m getting my period again soon ? my doctor can’t get me an appointment till two weeks just to ask a few questions hahaha