Miscarriage bleeding

ML
I first found out I was pregnant May 21st, the absolute happiest day of my life. I had my bloodwork done on the 23rd, all good and then had another appt and blood work done on the 27th and my levels had dropped and they told me I had miscarried. I was absolutely devasted. It was my first pregnancy and we had been trying for 7 months. I started bleeding the Monday after, so the 30th. I'm still bleeding, it's super dark spotting. How long did you all bleed for after your miscarriage? I have to go back tomorrow to get my levels rechecked to make sure they have gone back to normal.