Miscarriage spotting

Jessica • Happily married currently 🤰 ❤ lost 2 beautiful babys. Link Oct 2019 Willow march 2020

I had a miscarriage at 8 weeks on Saturday the 19th I bled hard until Saturday the 26th. Then it completely stopper for 3 solid days, now I'm getting brown spotting with cramps any advice on why?