2 days of cramps and AF 9 days of spotting

Kristen
Hey everyone so this month I finally bought opks I've been trying for almost two years with one mc. Anyways this month I got my AF a day late but when it came it was super heavy and the worst cramps ever. I usually onuy cramp the first two days and lasts about seven days ever since day three I've been spottng lighter as the days go but for 9 days !! I have no clue what's going on...I'm supposed to start my fertile week in two days should I wait because of this spotting? Has anyone else gone through something like this any advice will be helpful !