It honestly doesn't indicate much. You can lose it for several weeks with no results. Just keep a watch on things like pain and/or contractions. These can be in your lower abdomen or your back, as well as any leaking fluids or bleeding.
I lost mine two weeks ago and nothing yet. But with my son i lost it and was in labor not even a half hours later! I think its pretty random
Bump, I just lost the whole mucus plug at 41+5. I would like to know too!