Confused

Sara • I`m happily married to the most wonderful man, and we have now been ttc for going on 2+ years. Hoping to become a mommy very soon. Praying to get that bfp.
8 tests. 4 vvf positive 4 bfn. 6 days late. Only sign I've had of af was a small bit of light blood when I wiped last night, but every time I've been to the bathroom since then, there has been nothing. Felt like af is here every moment and have to keep running to bathroom only to find light clear discharge or nothing. Waiting on blood test results. Anyone have this happen and got their bfp? Any ideas as to what is wrong with me?