I believe i miscarried. please help.

Patient: I believe i was pregnant. I was a few days late of my period, then when i got it was extremely heavy but only for one day. i had many blood clots, and a lot of pain in my lower back and pelvic area, then the next day it was extremely light but still blood clots and very much pain. i have many of the signs of a miscarriage. does this mean i have experienced a miscarriage?