Welcome! Congratulations on your pregnancy, but sorry you're dealing with the cervical issues. I'm currently 23+2 and my cervix was found to be about 2.24 cms then but still holding steady at about that same length currently. I was put on 200mg of progesterone suppositories, and wasn't told to go on bed rest either, but to "take it easy". I don't have a cerclage either, they chose to check me every week and see how things were looking, and since it held steady I didn't end up getting one.
If they aren't already, I would want to make sure to be checked weekly, and I would probably "take it easy" also--no lifting, no exercising, sit or lay on the couch as much as possible. But if you're getting checked weekly, it should be easier to determine a better plan of action, so that's what I would push for the most.