Implantation or AF?

Olivia

I’m currently 12 DPO with AF due in 2 days. On 10 and 11 DPO I had some brown spotting, I was holding on, thinking maybe it was just implantation however this morning it was a little heavier. I gave up thinking AF had just arrived early, but now it’s seemed to have stopped. I keep going back and forth on if I’m out this month. Anyone with a similar experience still get a BFP?