How long does HCG stay in your system after a miscarriage.. HELPPP !!!

Gabriella Marie • 💕 4 Angel Babies 👼🏼✨ #28♍️

I found out I was pregnant August 15. Started bleeding August 7th. Thought it was my period . Took a test & was blazing positive. Went to the ER next day and said my levels were at 975. Went to the ER again about a week later for heavy bleeding and was told my levels are at 283. Miscarriage. 💔💔 it's been about a week and a half & im still getting positive pregnancy test. My OPK are even positive!

What's going on ?! Has anyone gone through this before & can give me advice..