A few thoughts that might be useful to run by your endo,

Near-complete Tymlos course + recent kidney stone: the label flags hypercalciuria/urolithiasis and suggests urine calcium monitoring in relevant cases. Worth confirming whether finishing the remaining pens a good move

Whether HRT alone could work as the follow-up antiresorptive. CTX +/- P1NP could add useful info here, though you mentioned your endo doesn’t use BTMs. According to the literature, estrogen reaches its maximal effect on serum CTX after 6–9 months

If Evenity is next, the bridging/transition approach in the meantime (some observational data suggest it can matter)

Any implications of your total hip replacement for medication choice or timing, worth checking with both endo and ortho

Wishing you clarity as you decide on next steps.