Help!! Ovulation bleeding? Implantation bleeding? Period? Breakthrough bleeding?

Soooo long story short, me and my s/o haven’t been trying for a baby but aren’t opposed to having one right now. We have A LOTTTT of sex 🤣😭🤦🏾‍♀️ I’m no longer on birth control and we still haven’t been using protection. My period was due on the 22nd but started on the 21st of this month . My period usually lasts 4-5 days ! ONLY 4-5 days , meaning 5 days tops. This month , my period lasted 6 days , and I’ve been spotting since the 27th . Today I went to the bathroom at work and wiped to see this on the tissue , what could this be ? I don’t ever usually spot . My period I usually always on schedule so I just wanted to see if there was anyone who’s been through this before .! 🤷🏽‍♀️ leave comments! Message me , let’s talk ladies , I don’t have any female friends and I need guidance rn 😭