Is this ewcm or semen on my tp?

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?

[KellyA74]

I got a positive OPT 2 days after I had the EWCM this month...so keep trying!  I wouldn't think that what you are seeing would be semen that many hours later....semen is more watery, whereas CM is slippery/slimey....Keep testing!

[MelliMel18]

I noticed that is is slimy and stretchy. Hmmm...unusual for me to see it this early. I am not due to ovulate until about 3 or 4 more days. But then again, i have noticed a lot of unusual things happening to me ever since my m/c. Like for instance, my bb's are sore. Mostly on the sides and underneath. They have been sore since my period. What is that about?  I hate all these little things. Especially since i have never had them before i had my m/c.