Sorry if it is your period Lbox, fingers crossed it will dissapear...
IBL, yes you should sill keep on GOFing until all EWCM is gone, but, the erm.... produce from GOF is easily mistaken for EWCM, the easiest way to tell them apart is to grab a gloop of the stuff (nice !!) if it sinks it's EWCM, if it balls up and floats it is (how did BB put it?) baby batter?
Also, if you find it is semen, that doesn't mean it has all been semen, you may well have OV'ed already, but I'd keep GOF'ing until you are dry.
You don't have to have EWCM to be fertile, just wet and slippery is as good, some people never get EWCM.