My period was February 5 a 26-28 day cycle. I had extreme cramps on my left side I was peeing so much and so bloated. It was late by 4 days it just started today. Never once have I been late. It started light now is heavy with little clots. I’m 24 years old perfectly healthy no stress. Does anyone know why this could happen?

Has this happened to anyone? Please respond I need advice!