Ok so I had my last period 3 June for 5 days, about 2 weeks after that I was having pinky brown red and orangy spotting over 4-5 day during which I had nausea, fatigue and dizziness! Next period was due 1st July.. still nothing but yet I've done 5 tests and they all show negative :-( at the point now where I'm so desp for a BFP that it's getting me down! Want a BFP so badly!

There are 2 options.
You could be pregnant but not far enough along for the test to detect it (very unlikley)
Or, you are stressing yourself out about being pregnant, which can cause irregular and late periods. Trust me, I went through the same thing and my boyfriend said "stop stressing out" and the next day I started my period. I wouldn't worry, just give it a couple days