TMI! 12 days late what kind of cm is this?

So I am currently 12 days late, currently on CD 47. I took a pregnancy test at 10 DPO and 12 DPO and it was negative so I decided I wouldn't test anymore and just wait until AF arrived. I've had little cramps come and go, very emotional for no reason(balled my eyes out last pm & had no clue why), very tired, and just went to the bathroom and found this. any suggestions on what could be going on? Please help all new to this TTC