Eight days? Give it another week. It may be ready, but another week won't hurt.
To secondary or not is a debate that will never end.
If you want to sample, just open the lid and sample. If you're at the gravity you want, bottle. If not, it'll probably be fine to put the lid back on and wait or go to secondary. And by probably, I mean most likely 99% no sweat. People do it all the time. The sun still shines.