9 days late and only a vfl!!!!

Monty
I need some advice ladies! if I was 9 days late for my expected period I should be showing a BFP? I've took 3 tests using clear blue (doesn't help that they are notoriously known for giving false positives ). I usually have a long cycle from 40-45 days as well (currently on my 50th day) 
My question is though, should I be showing a stronger positive by now? 
 or because the lines are the right width and have been there for every test i could very well be pregnant?