exercise after D&C.

My doctor never really told me not to exercise. She just said no lifting over 20 lbs for a week after the procedure. I went back to the gym yesterday and did a shoulders and back lift and then walked on the treadmill at a high incline. Today would be a leg day and I'm not so sure if that's smart. Even if it's just light weight and body weight stuff. Any opinions out there??? Or what your doctor has said???