Cycle day 57 and about 57 questions lol

I'm sure by now you all are getting tired of me complaining about not getting my AF yet but I have a question hopefully someone can answer. I'm on cycle day 57 and I was wondering if There is a chance I may ovulate before this never ending cycle finally ends. I assume in order for me to get AF I have to ovulate right?? Should I be using OPK'S? I'm so confused (obviously) and don't know what to do or when I should start to worry.