Yes it is perfectly normal. After my second m/c I was on pain medication for a week and bled for about 3 weeks. But if it is bothering you, you can always call your doctor.
I was in pain 4 about 3wks and bleeding 4 almost 2mo. I didnt have a d&c cause of t risk of infertility. My dr said it was normal.
If I was you I would go get checked!!! Its possible you didn't pass everything. If you had a d&c done than yes it is normal. After my d&c I was n pain for about a wk!