I am 4 days late and still no sign of AF until today. But I’m thinking I ovulated later than I thought and I got some implantation bleeding instead of AF.

My temps have stayed high at 98.6 and today for just a bit they dropped to 98.5 and then I had pink spotting with some brown during the day and now back to pink. It’s only happened this afternoon and right now. It does not look or smell like period blood to me and it’s super light. What do you guys think AF or implantation??