anyone else late and still having negatives?

My cycles vary from 28-31 days every month never been before 28 and never been after 31. I'm on cd34 today and today is coming to an end and still no show of AF coming! Testing negative every morning starting to think I may of ovulated later than I thought. Is anyone else having the same problem? Gonna wait a few more days see if AF arrives if not I'll be booking a docs app. Holding onto hope x