Egg whites??

Amber
Ladies I am so confused by the tracking of CM and between this app and Ovia I can't seem to place mine in a box... 
I'll attached a pic (sorry in advance but feel I need some support here) 
I've been TTC for 6 months and whilst my cycles started off regular they appear to be getting longer 
I'm cycle day 12 and in peak week yesterday's CM was just damp, almost water like and then just now I went to the loo, wiped and this clump was on the tissue ... Is this egg whites?? I've googled and images don't compare 
Just done an OV test and appears negative - helppppp