Thank you @mayblin. I am kind of on my own here - my Endo did not want to do the tests! (she said she doesn't see the need) so I asked my GP to order them and she agreed. So I guess it's up to me to ask. I'm thinking about waiting until 12 mo then do every 3 months to monitor. My GP doesn't have any experience with them so can't help with results. I am researching how to interpret the results and think the P1NP is good but is the CTX too high? Can anyone answer that?