Don't waste your energy ( tho we all have) about pain and help. Positive mental attitude. I have 13 stairs and went up to my bed and whenever I needed to right out of hosp. You will not be off your feet, you will be up right away. The biggest challenge is your meds. I had a little spiral notebook with a pen hooked on in a tiny tote bag with my meds and sudoku puzzles etc and always a fiber bar and snacks to eat with my pill. It can go on your wrist as you toddle around to bathroom or down stairs etc. Write every question that pops in your mind for family, or Dr, or store etc on separate pages. Since you will take meds by the clock and be drowsy this takes the pressure off.
I live alone and my 81 yr old dad stayed for 7 weeks. Wasn't needed but made him feel helpful and I cherished his company. He hears next to nothing so it was kinda funny because I did everything necessary from day one. I liked just having him in the house in case. Your husband I am sure will
be in better helping order. I even took tiny sacks of laundry and did myself working slowly. I was sitting on a stool and picking weeds at 4 weeks. It is a lot of work but you have pills for the pain. I had Hallucinations so dropped them at 3 weeks and was surprised at how much icing takes care of pain. once you go to PT classes you will meet other knee people and talk and share with them and you should just look fwd to it as a social . I was bone on bone and pain after in hospital was less from first trip to bathroom.