for predicting onset of menopause and even future fertility.
This woman on this other board I frequent is 43 and just got a BFP with an undetectable AMH...naturally.
But here is the kicker, her AFC when she was 33 (10 years ago) was 8-9 and her AFC when she was 37 was 5. She has had 4 kids between 33 and 43 and two of them were after the AFC of 5 reading. All children were conceived naturally or with minimal intervention. Her FSH has always been normal or only slightly elevated.