My ovulation day?

Krissy

I had EWCM on the 16th and 17th along with a couple other ovulation symptoms I usually have. Yesterday my CM turned watery/white, no longer stretchy but I had cramping on my left side and WoW were my breasts AND nipples ever sore!! My question is, based on these symptoms do you suppose I ovulated on the 17th or yesterday the 18th? Does CM change the day OF ovulation? Thanks ladies!