AF is not due until 4/16 (3 days from now) according to Glow.  Yesterday morning at 11dpo I woke up to some brown spotting, which eventually turned pinkish and went away.  I took two tests (the Henry Schein medical office tests, I work for an OBGYN) yesterday, and they both came back as faint positives, so I thought maybe it was implantation bleeding.  I went home and bought a FRER and got like the faintest of faint lines, like you had to hold it at the right angle to see it.  Tested again this morning thinking maybe it would be darker, and it isn't.  So, I assumed either the faint positives were wishful thinking or maybe a chemical pregnancy?