Help implantation question TMI no pic

Ladies I need help Yesterday late night I had a very little brown and pink spotting in my undies (penny size)none on the paper I also had sticky and a lot of watery cm (enough to think some1 knocked over some water)  could it be implantation AF isn't due until jan 6 what could it be im not sure when i ovulated I usally have a 28 day cycle but last month I had a chemical pregnacy and had a 30day cycle instead ? Wat could it be?when can I test? Glow Sed last week was my turtle week it didn't feel like it suggestions??