Like Little_O I dilated early - was put on bedrest when I got to 3cms at 31 weeks but then everything just stalled. Gave up on bedrest at 37 weeks and DD3 didn't make an appearance until 41+1.

I had the opposite of you because I was dilated for forevvvvver with #3 with absolutely nothing happening, so I guess it could work in reverse as well - not dilating means nothing until the time actually comes. It certainly can change quickly - with DD2 I went from a tightly closed cervix when I first got in to hospital to her being on my chest a couple of hours later.

Good luck. I hope you don't have much longer to wait. It gets so tiring at the end, especially with LOs to run around after