I don't know much about it but....
They check mine each month after I O. So far so good.... I guess. First one was 10.2 second month was 9.2. Sounds low to me, but my doc said it was okay. The nurse said it was boderline. She said they like to see then 11-15. I am kinda suprised they won't check yours each month. Maybe call and ask again? I love my doc but I think somtimes he is more proactive than at other visits.