@slapshotmary, hi. And every two years may not be right for you. I have it from the fellow who ran the clinical trials that he "almost never" prescribes Reclast for the second year. He looks at bone markers and dexa to make the determination. It may depend upon how much bone you've lost.
There is this from 2015 https://pmc.ncbi.nlm.nih.gov/articles/PMC4959627/