Spotting questions?

I have had light, pink spotting on cd 11,12,14 with some cramps off and on. My cycles are usually 27-33 days. I know you can spot with ovulation and implantation but i haven't been <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a>. I've never had mid cycle spotting. Anyone have any experience or thoughts??