PERIOD OR SPOTTING?!?!

Arlicia
Been having irregular periods about 30 day cycles and usually bleed for 9 days or so ... But this period was different didn't start till 6/12 CD 54 (I was supposed to start around 5/20 )or at least I think I've started ... But it's just spotting light pink in the tissue ... Hardly anything gets on my pads ... I've taken pregnancy tests all negative last pregnancy test I took was 6/9