Ewcm before bfp?

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I have long cycles 35 to 38 days on average and today is CD38. For the past 4-5 days I’ve noticed clear snot like stretchy cm. I barely even get this during my fertile week but here I am! I usually ovulate between CD21 to CD26. I’ve taken a FRER yesterday and bfn. Maybe I’m testing too early? Has anyone had ewcm before their bfp? Could this be a sign?