I am so sorry you are upset. I am kind of right there with you. I have not tested yet but the only symptoms I have are normal BFN symptoms, achy boob (not pregnant sore, just dull aches) and crampy. I know it sounds positive, but this is how I feel every cycle, except the cycle I had the chemical, so I just feel out. Blah.
On the plus side like the others said, 5 days before your period is about the earliest you should be able to get a BFP so you really do have more time! FXed that is the case and in another day or two you will see your BFP.