Please respond!

Marissa
I know I keep posting but I'm so confused! I'm on CD 53, taken 2 tests..BFN.. Still no period. My cycles are pretty regular but I'm usually 34-36 days rather than the normal 28-30 I was wondering if its possible I took the tests too early? According to my calendar and calculators I'd be 6wks, and I took the tests around Easter. Should I take more? Go see a Dr? Or keep waiting?