I'm on my third day of spotting. It started off light brown (CD26), was heavy and dark brown... almost black in some spots with ever so tiny tinges of pink on CD27, and now on CD28 much lighter in flow and a medium brown colour. It looks like it might be tapering off.

What the heck is this? I was due for my period on CD28 and it never starts this way.
Any suggestions? I'm avoiding the GP at the moment as we agreed it's best I stay home for now.