I have a desk job as well, but I'm planning to take two weeks (my doctor said 2 to 3 weeks). My sister just had her surgery in August and I was asking her about taking off because itially I was only going to take a week off like you are. But she really recommended taking an additional week off. She was telling me that you will be really drained and probably be very tired. And if you are still on pain meds it's not recommended to drive. So I started completing my FMLA paperwork as well. I'm going to take a week and the other week will be disability. But I just wanted to give you a little heads up since my sister has been through this so recently, she has been a great resource for me. Best of luck to you!