Watery/white cm

Af isn't due till the 15th or 16th, I've got what looks like watery cm with sometimes white chunks mixed in(they are lotiony at some points). Tested this morning and bfn but I've never tested positive before my period. Am I out this month or could there still be a chance? Anyone else have this before their bfp? And yes I have searched already but didn't find any definite answers