Have you tried evening primrose oil? I wasn't effaced or dilated any for weeks, then I read about inserting one before bed. I did this and the next day I was effaced a bit and I kept doing it each night for a week and I started to lose my plug.. its worth a try if you feel up to it :)
Fingers are crossed for you!
No advice, just in that same position, not dilated, no bloody show, no signs whatsoever and doc doesn't want to even try a sweep until 41 weeks