BFN 12dpo with possible implantation bleeding

Kimmie

I'm 12dpo today, got a BFN this morning on a clearblue test... BUT... my period is due in 2 days and I've just seen what I believe is implantation bleeding. Brown in colour, no red. Slightly gloopy (appologies for any sensitive readers).

I've never had pre period spotting before and am wondering if this is perhaps a glimmer of hope?