On the CM front, I can only speak from one month's experience, as I only came off the pill in November and needed Norithisterone to restart my cycles, having had no period or anything, but my ewcm was unmistakeable. It looks as others have described, and I got it on the Monday after having got the LH surge on the Friday morning, so I think I got it after ov (I hope so anyway, as we didn't dtd on Monday night :( )
Before that, it was watery for about 5 days.
Apparently, ewcm is most noticeable after a bowel movement, which is when I saw mine, on the toilet paper.