Hi -
I'll keep your family in my prayers. I was put on bed rest for a shortening cervix at 22 weeks -- went from 1.2-1cm. We went in for weekly appts and I dropped to less than 0.5cm when they stopped measuring it. Never any dilation, but my darn cervix just kept shortening -- we were very worried. BUT I made it to 34 weeks (to the day) and had 3 healthy babies all over 4lbs! They will be 3 yrs old in a month and are all in the 80-99th percentile for height/weight!

Your wife needs bedrest -- only getting up to urinate. My husband set up a mini fridge which he stocked daily -- AND lots of water.
It's very had not to worry, but I wanted to share a positive story as I was on the message boards daily looking for hope also.
Wish you all the best.