Tests to lighten

Hi there,

I found out Monday (8/19) that I was having a missed miscarriage, I started to bleed a little and found out my baby’s heart beat stopped 6W 3 days. She said my cervix was open but I took the miso to speed the process up, I passed the embryo the following day and then on Thursday passed more tissue. I am now having light bleeding, and my test is still pretty strong. Should I be worried? I am 4/5 days post the start of this and a little worried about RPOC. When should my test lighten? This process is mentally taxing, also my levels were 15000 on Monday when I found out.