Long 1st AF after miscarriage!?

Izzy • DD 5 years old, rainbow baby boy arrived Jan 16 after 3 miscarriages
Hi ladies!
​Did anyone have a much longer 1st AF after a miscarriage? I started spotting 9 days ago (9dpo) & AF arrived 6 days ago (12dpo). It shows no sign of stopping! I didn't bleed this long for my actual miscarriage at 8 weeks!! I'm normally a 3 day AF girl!! At what point do you think I start to worry? I was hoping this month would be our month but feels like we're not even going to get chance at the moment!! X