Has anyone experienced Implantation Bleeding at 13 DPO?

Katie • Baby #2 on the way 🥰💘

I know I may be grasping at straws here, ladies. Today I had very light pink spotting. I usually start AF with a very heavy flow, I’ve never had this little of spotting. Woke up with cramps which also never happens. They usually don’t come until afternoon or late morning. AF is due tomorrow, could I have IB this late??