So disheartened

Claire • Mummy of one, baby number two is on the way!
Ladies I'm so confused and disheartened right now - AF is 9 days late (I have pcos but a fairly regular 30/31 day cycle) - I have now taken 3 pregnancy tests (we are actively ttc) and have had three BFN. Gutted doesn't even begin to describe it. What's going on?!