So sorry you are going through all this, I know the journey is hard.
You may not see much change in the dexa so soon, but bone turnover markers will give you a better idea if the treatment is working.
Has the doctor checked your vitamin D? A number in the 20’s is considered normal, but I think a number closer to 50 is more optimal.
If the side effects are intolerable, then you might want to change meds.
Have you tried oral bisphosphonates?
Have you fractured in the past?
Everyone is different, our care needs to be centered around our specific needs.