I've never been able to see enough mucus to tell the difference but yesterday on my temperature rise for the first time in my life TMI it was running out of me! Like so much that I just sat down on the toilet and the top of the water was covered! Worried I missed my window.. We BD 3 days before my temp drop and on the day of the rise which I read is to late.. but the day of the rise was the day I seen the mucus (and yes there is no mistaking it was EWCM)