Hoping for the best for you! I understand your thought process, though. Makes sense. It's hard to see a BFN especially when you're hopes are so high.
Do remember though, even if it's a BFN tomorrow you're not out until AF shows. If I didn't temp, I'd be going crazy right now cause I'd for sure get BFN's and be convinced something's wrong. My longest cycle in the past year was 35 days and that's where I am today, but I know AF isn't due for another 11 days since I temp.
I'd recommend looking into temping if things don't work out this cycle. It brings me a lot of peace of mind actually and helps to know when to test.
Let us know what happens!