So AF WAS DUE TODAY

Af ether do today or tommrow ,  last night got pink slimy cm ,  bfn so of course that's an obvious sign For af but thought it was weird that it was more like pink egg white cm then just blood  so today being being 13DPO TESTED THIS MORING BFN BUT PINK CM AGIAN , followed by cramps so hopefully I get my bfp or af 😕 anyone else experiencing this