CM question.

I've been searching for awhile on Google now and have gotten a ton of different answers for this. I'll try my best to explain. On Friday my husband and I BD. My fertile window starts tomorrow and my peak according to glow is Friday. Today I noticed that I've been feeling wetter and when I wiped, my CM was watery but had a hint of yellow. I know it is not an infection or I'd have other signs. Any idea if what it could mean or is my body just getting ready for ovulation??