Confused- blood tests

L

So I had a blood test done which showed very high AMH and my doctor started saying I probably have pcos and ordered a bunch of day 3 tests and day 21 tests.

So far, my day 21 progesterone was normal and showed i ovulated and my day 3 estradiol, lh, fsh and prolactin all came back within normal range. I go for an ultrasound tomorrow too.

Is it possible to have very high amh and not have pcos??