So this is a weird question, but i am sure many of you have wondered the same thing. I had sex late last night, around 1am. It is now 6:30pm, and noticed that my cm was kind of like slippery/ewcm. Can this be semen, or is this ewcm? If it is ewcm, why did my opk's come up negative. I guess that is a hint that it is not? Hmm.....not sure what to think?