Implantation bleeding or AF??

Hannah • Wife💍- Mom 💙 🌈👶🏻💙

So my periods have been pretty regular even after having my son. They are 40 days and I tend to ovulate 2 weeks before AF arrives but today, she knocked on the door 11dpo. Earlier in the day I was having decently bright red blood but a little lighter than usual and now not even 24 hours it looks like it’s tapering off /pink? Just a note never seen pink substance come out of me before 😂 Could this be IB or am I likely going to see miss flow for the rest of the week 🙄. Thanks!!