Period 😫

I am on day 3 of my period and I am having some cramping, heavy bright red blood (about the color of a coke bottle label.) I was 5 days late when I started. I am having clotting. I have lost 2 pounds and 4 ounces since yesterday. Day 1 & 2 have been the same. Should I go to the ER? Is this normal? I had a period last month on April 23rd.