HELP! I need some opinions.

On the 31st I started spotting really lightly. I thought maybe it’s my period starting early it was a pink/ brown kinda red spotting. It continued until yesterday. At one point yester I had a really bad cramp for maybe a minute then it stopped. Spotting was Very light, never coming close to filling a tampon. Today it has completely stopped. I’m supposed to start my period tomorrow. What are you opinions on what’s going on? Cause I’m confused.