Implantation bleeding?

I'm supposed to start my period on the 9th, but today around 3 I went to the bath room and had like barley visible tan color discharge on the tp...have had slight on and off cramping for 2 or 3 days now...only other syptom that I've noticed is I've been really hot the last 2 days. I had a misscarage last year in May. Not really sure what to think if it's implantation bleeding or not?