I been having problem with my cycle.

The last month I had 2 cycle but which it was rare. The first time of my cycle dates 13-16 it wasn’t heavy at all once I was done the next week 24-26 I started spotting for 3 days only but spotting only nothing compared my normal cycle. So this month January 7-9 on the first day I started spotting but black blood but just a few and then it was just light pink but only spotting nothing compare my normal cycle. And on the dates 24-26 December and 7-9 January I never release blood clots. Have anybody had happened or is it normal or what should I do ? I’m worried and idk if either it’s early pregnancy or should I get blood test? Please someone help me