Spotting but my CP...

Ashley • Been with my husband 12 years, but married Aug. 2015 :: we have two daughters 💗💗 :: TTC #3
This is my 3rd day spotting..very very light light pink/brown..not very much at all but my cervical position is high, medium closed and medium soft..normally when my AF is arriving it's very low and very soft..AF is due to arrive around January 10th ..can anyone possibly explain what's going on?