AF after MC help

Crystal
Hi all! I hope this is the right place to post this :/ Sorry for TMI but I need some advice here. I began having a miscarriage on June 6th. I was 4 and a half weeks. I bled from the 6th to the 10th. I did pass a few clots but nothing fleshy looking. The doctor never did an ultrasound or anything other than blood work. This month I began bleeding quite heavily on the 3rd and noticed these weird looking "specks" everywhere on the pad and was still bleeding heavy on the 4th so I decided to use a tampon so I would be more comfortable when watching fireworks with my family. When I came home, I put a pad on but suddenly from that point all I did was spot. The spotting lasted for 3 days then stopped but I'm still cramping and pains up to my stomach and sides. I was wondering if anyone else had experienced sudden changes with AF and cramps after a miscarriage? Thank you