Actually, my "worse" knee got so much better after my hip replacement that I have been able to tolerate it for over 10 years! The doc said he expected that to happen once I started walking correctly on the hip. Sadly, it is now telling me - often quite loudly - that I need to begin considering replacement. After many issue in 2024, I am trying for a surgery-free 2025, so will be seeing my orthopedist about delaying to Spring 2026.

If I were you, I would go forward with the hip replacement & get it healthy ASAP, then do the knees after the wedding. Be sure to allow yourself plenty of healing time between surgeries.