Blood clots

As
I had a miscarriage March 6 and I was bleeding after I left the hospital and the bleeding was light now heavy and no cramps. The next day it was again light bleeding no clots and no cramps until the night time around 8. At 6 am this morning March 8 I went to use the bathroom and a large blood clot about the size of a walnut fell out of my underwear/pad. Again around 7 pm while I was in the shower another blood clot slightly smaller came out. I'm worried and I don't know what to do. Is this normal? Any help is appreciated. Thank you.