Need a bit of advice.

I have the most amazing man in the whole wide world. He is loving and caring and a wonderful father. I just had knee surgery on Monday and I am really struggling with pain management and taking care of our daughter. My SO took off the whole week and his birthday is Friday. I just feel so terrible that I can't take care of myself and I just start crying because everything hurts and I feel like I'm ruining his birthday. I could use some suggestions on how to show him how much he means to me. I can't do much, I can barely walk, can't really get my self dressed. I just feel so bad for him. Thank you for reading