I need opinions

Catherine

So I believe I ovulated sometime between the 10th-14th of this month. Yesterday I thought I was 10 days DPO and I started spotting. It started off very light pink but then it immediately got a bit darker but it has not been heavy like my normal periods are and I am also experiencing very heavy, sticky CM. I’m not bloated or cramping like I usually do with a period. Could this be implantation bleeding? I am usually like clockwork with my menstrual cycle and if this is my period it’s early by a whole week.