My period

Good morning everyone ☀️

I’m 31 no children, and never been pregnant. Okay so the last day of my period was the 20 for this month. My periods are usually 3 days long. So I go to the restroom 2 days ago and I am bleeding. I have irregular periods anyway. But I have been having regular monthly periods for some years now. I’m not in pain or anything.

Has this ever happened to you?? What should I do??