Well that is the problem. My cycles have been a bit over the place. I am on CD36 today. My last cycle went for 40 days and the one before that went for 28 so I have to wait till 40 days because otherwise it might be too early for a positive result. I don't want a BFN! Heres hoping for a BFP anyway. I have had boobs that enlarge slightly before but never the blue veins!