8dpo Implanation spotting?

Hi! Looking for thoughts. I track my ovulation and I know I ovulated. 6dpo at night when I wiped I had the palest pink discharge. Brushed it off to ovulation spotting. Fast forward 8dpo im still having this spotting. Not even enough to wear a liner, only when I wipe. It is light pink discharge. I have been having full aching cramps 7-8dpo almost non-stop. My boobs are also very tender on the sides and towards the center to touch. Just looking for input. I have never spotted like this before a period. AF in 7 days. Thoughts?