Membrane fell off 13 days post bone graft

[amhm8990]

I had tooth extraction and bone graft done two weeks ago. I followed the aftercare instructions very carefully. The sutures began to loose a couple days ago and today they fell out along with the membrane that was holding up the bone pieces. There is a large hole in the site and I could see some white in there. Do I have to go back to the dentist immediately? My follow up is in 5 days. Thanks.

Picture of before :

https://imgur.com/a/h2mrEEM

After:

https://imgur.com/a/JDY2TIN