Implantation

Jessica
This month (August) was our first time TTC. I am currently 14 DPO (so I believe). I took a pregnancy test yesterday, result was a BFN. Today I think I am experiencing implantation bleeding. It's extremely light. My AF is normally extremely regular and I have never experienced spotting. My AF is not due for another 4 days (Aug 29),  Anyone have a similar experience that turned out to be a BFP?