13 days past missed period ...

I regularly have unprotected sex (TTC) and my period is now 13 days late. Took 3 tests and two were negative but one has a vvfl. No I am not stressed out and yes my periods are extremely regular like clockwork. I need advice and thoughts? After reading other posts I know blue dye tests have a bad rep. Already so I will re-test in a few days again but with pink this time. Also my emotions are out out of control I cry at the drop of a hat which is extremely rare for me and my sense of smell is stronger than ever. Anyone test negative and end up being pregnant?? Am I going crazy??! Also, I haven't been ttc to the point where I dwell on it all the time so I doubt it could false symptoms that I trick my own body into. Matter of fact I am actually at the point where I feel as though I have given up hope and if it happens it happens. Kinda messed up I would skip my period and not be pregnant 😕😕 one last thing, around the time my AF was due I had very light spotting (on tissue paper only) that was pinkish at first then turned brown. Anyone with advice or experiences similar is extremely appreciated