Light pink spotting, BFN

Hey Ya'Il. I see people having posted this question before, but no one seems to update whether or not AF showed, so some advice would be appreciate. First month of actively trying to conceive using preseed, OPKs and bbt. Glow says I should start Tuesday (3/24), FF says Thursday (3/26)  Anyway, on Friday (3/20-8 or 10dpo) I had a temp drop below the cover line. That night I had light pink spotting when I checked my cervix, but it only lasted a couple of wipes and nothing since. Today is Sunday, temp back up and I'm still getting BFNs with FRER. Anyone experience this...what were your results? Thanks in advance!'