Knee Rehabilitation

Well, I'ts been three weeks since I separated my ACL from my knee, and I am now at least able to 'peg leg' it around. I finally shed the crutches. Once this thing heals back to the bone, I have to do Physical Therapy. So who's had to go through PT for their knee(s)? I am curious how long it actually is going to take me. Doc say's I am totally disabled until the end of October, but he already has me walking on it. Just curious to see what everyone else has gone through...