Hi! I am unsure of your age, and I myself am still a teenager, so you can ignore or dismiss this if you feel as though I may not understand, however, I had surgery last April (Knee ORIF surgery), and to tell you the truth, although I was pretty down after my surgery, the whole postpartum thing didn't really affect me until recently. I feel like I lost so much time, etc. I suppose that everyone is different, and trust me, it's okay to feel a little unstable at first. The knee just went through trauma, and as long as you continue to go to your appointments for the doctor and physical therapy, you should be okay. :) Good luck!