lisaw, welcome to the forum.
There always seems to be a problem with AVN hips as the deformation of the femoral head means the ligaments shorten and tighten up. Then, when you have the new hip, they have to stretch out to length again which is painful. If you keep on with your exercises, I am sure it will fade away over time. But, as a wise man on here once stated, it didn't take your hip a few weeks to get into the condition where it needed surgery so it's not going to take a few weeks to get sorted out.
One thing occurs to me, are you taking enough pain killers to help you cope? I've noticed some people saying they think that after a few weeks they shouldn't need them anymore as the operation should have fixed things. Well this is true but you still have the effects of the surgery to recover from and that is not going to take place in 9 weeks.
Other than that, you battle on, honey - you seem like you are doing fine.