Anyone had this and get bfp?

Last af 11/28/18 - 12/2/18. Had almost positive opk (looked positive to me but app marked it lines right under positive with the analyzer) 12/15 app prediction for ovulation was 12/17. Spotted very lightly (not even enough to bother with panty liner) 12/23-12/28. No spotting or even signs of af since. If numbers right on CD 36 average 30-31 day cycles. Took 3 hpt and 1 opk (was curious) and all negative. Any hope left for BP? Or could something be wrong. This was our last cycle before driving 3hrs and shelling out almost $500 for a second opinion.

Still a chance or am I out