2nd trip to L&D, and was sent home..

My doctor said I was dialated to a 2 a couple of weeks ago. He put me on bed rest. I went in because every time I have a contraction I leak a little, so I wanted to make sure my water wasn't broken. It isnt, but the nurse said I wasn't a 2 yet. She said my cervix must have closed up a little due to bed rest. I have never heard of a cervix closing. I alway thought you can stop dialation but not reverse it. I am really starting to question these doctors and nurses around here. Anyone else have this happen or have thoughts?