Does AMH predict whether I can fall pregnant naturally?

The answer is NO.
It is important to highlight the difference between falling pregnant naturally (this refers to women who have no known fertility problems) and falling pregnant during IVF treatment (these are women with known fertility problems). AMH is most useful for predicting how ovaries will respond to FSH stimulation in the latter group of women but is not useful for predicting likelihood of pregnancy in the former (non-IVF) group.
Several studies, including one published in 2017 in one of the world’s top journals, JAMA, have investigated whether AMH levels could predict chances of natural fertility. These studies have not found any association between AMH levels and the chance of achieving a pregnancy. Based on the results from these studies, therefore, the level of a woman’s AMH cannot predict her chances of achieving a pregnancy naturally.
This year, the American College of Obstetricians & Gynaecologists concluded that AMH is not able to predict natural fertility potential and that it “should not be used for counselling patients in this regard”.

Doctors should be very careful about mis-interpreting the meaning of an isolated AMH value. Women should consult with experts in the field who can properly evaluate all of the relevant information.