Can I Take Prolia Instead Of Fosamax?

Hello 65 Year old female with RA .See my Rheumatologist every 3 months for Blood work .Meds include monic 15 mg 1 daily folic acid 2 daily methotrexate 25 /ml via app under skin 0.7 mill. once weekly ,biotin1 daily , also just started back taking fosamax 70 1 weekly . my RA is doing well but my Bones R not . OBGYN Dr. suggested we try Prolia ,with blood wk to see if i can take it . do not like fosamax . what do u think ?