BFN 2 days late

So I have been feeling weird the past week or so. Af was due 9/9 and still nothing. I did test yesterday morning but BFN. Personally I think that was too soon. My cm is creamy and white and I think my cervix is soft according to descriptions and my back hurts more. I feel like my period but not as intense and no "flow". Should I wait longer before I test ?