Implantation help

Hey guys, I am about 10 dpo and on the third month ttc, my period is expected this Saturday so I'm about 6 days early, and noticed a coppery red/brown watery spotting that dropped onto the floor after my shower tonight. When I wipe it's a bit more brown than period coloring. Not associated with cramping, and have had frequent urination sore breasts and fatigue for about 4 days. Is this a sign of implantation bleeding, and when should I test now with an early response test? Could it be an early miscarriage and I'm just getting my hopes up? Help!