It's best to phone the vet regarding a laxative as you don't want potential or unwanted drug interactions or problems with the medication she is on. Make the effort not to be anxious, stressed or worried - hard I know, but she'll pick up on your emotions before you register what or how you're feeling. Smiling is your face telling your brain you are happy, so smile a lot.
My dog was less stressed during his recovery from elbow surgery at 9 months, when he was out of his crate. I got to read for hours in a comfortable chair, with him lying at my feet. The only exercise he had for the first 6 weeks was going out to potty on a leash. After the first couple of weeks, we would very carefully lift him into and out of the car and take him for a drive, car windows partially down, to give him an outing and his nose and brain a workout.
I know how you're tempted to feel, it sounds like you both are doing a wonderful job in her care and recovery.