This is my 8th month trying and this is a first. My luteal phase has consistently been 15-16days and I’m 13dpo so 2-3 days from AF. I only tracked with OPK this month, no BBT. Noticed pink when wiping this morning and when I checked CM I had a mixture of pink/brown tinged CM. I also always cramp when I start AF but… nothing? Definitely no red. Is this just an early AF? Negative pregnancy tests.