You should be able to access your dexa scores on your patient portal.
Someone with more calcium info should answer that question. Great that you are becoming your own best health advocate! There is a wealth of knowledge and experience here.
Make sure you are asking you doc why: why are you prescribing this drug, what is the science behind this drug for my osteoporosis and what is your treatment plan and thoughts about drug sequencing.
Is this your PCP or endocrinologist. What is this person's expertise in bone health. Don't be afraid to ask for a referral. Or self refer if that is an option in your medical system. Do your own research on best docs for osteoporosis.