acandeloro on "bed rest?"

Hi ladies- I am 26 wks pregnant w/ boy/girl twins and was put on scheduled rest last wk after seeing my High Risk OB and finding out my cervix had shortened from 4.7 to 3.2 in 2 weeks. I saw my regular OB yesterday and had my cervix checked again and it has shortened more, I am now on modified bedrest. Anyone else on bedrest? Also- does this mean I will be on bedrest for the rest of my pregnancy or is it possible to be placed on bedrest and then at some point being released to normal activity? BTW- my babies are doing great- gaining weight and passing all the tests and monitoring the high risk OB is doing every 2 wks. Any feedback/advice/ or similair stories would be appreciated