I had another u/s today and my cervix has actually lengthened. I am now 15mm. The sonographer said that she has seen them completely close up again with bed rest. So if bed rest is working, I'm sticking with it. Since things are moving in the right direction my ob suggested a wait & see approach, and if things worsen we may try progesterone treatment. The evidence isn't conclusive but some studies have shown significant differences, i.e. significantly more low risk women going to term with it than without it.

Keeping my fingers crossed.

Thanks again for all your good wishes.