mid cycle bleeding?

I have been diagnosed with PCOS and have always had VERY irregular periods, I'm talking maybe 2 or 3 a year. But the good news is for the last 8 months I have had a period every 33 days! I mean that's insane for me! So here I am 8 months into having a regular period and I should be ovulating this week (if I should get so lucky) but for the last 2 days I have been having brownish pink spotting. Is this normal? Is this bad?? I'm just concerned that it's a sign I'm not ovulating or something. Anyone have any insight on this?