short cervix

Brooke
At 27 weeks I was told I had a short cervix and dilated 2cm. Now at 29 weeks, no futher dilation has taken place but my cervix length is at 7mm (0.7cm) but doctors have not recommended strict bed rest. Has anyone gone on to give birth full term with a cervix as short as mine? Is it unusual they didn't say I had to be on full bed rest?