Hi Low t-scores, welcome and thanks for your question.  This is a tough question.  Has your Dr. recommended Boniva?  All of these meds are approved for postmenopausal women by the FDA, but there are some who take it anyway depending on their medical history--like previous fracture--or if they have a secondary cause for osteoporosis.

I would discuss this with your Dr. since it would be very important to avoid pregnancy if you were to take it.  There haven't been any studies done on the effects on babies, so if your Dr. decides to rx this ask if you need to consider precautions for pregnancy.

Also you have osteopenia, not osteoporosis, so you are in the precursor stage to osteoporosis.  Only you and your Dr. can decide this, and only you know if you have other risk factures to worry about, like previous fractures.

There is a medication that is approved for both pre and postmenopausal osteopenia and osteoporosis if you'd like to read about it.  It's called Fosteum and here's an article on it that you can read.  Fosteum is considered dietary management for bone loss, and it contains vitamin D3, zinc and genistein (isolated from soy).  If you have any allergies to soy or have had previous cancer that is exaserbated by soy you might not be able to take it.  According to the World Health Org, osteoporosis is any score below -2.5 so you are close to that, but it's still possible to improve your scores with supplements, exercise, and bone meds, if you choose.

Good luck with your decision.  If you have any other questions just ask.