Method of diagnosis of IVF viability. The method includes ascertaining a subject's AMH level from testing and then selecting one pregnancy or live birth prognosis category that applies to the ascertained AMH level by matching the ascertained AMH level with an applicable one of a plurality of ranges of AMH levels pertaining to an age of the subject. The matching indicates the prognosis category that applies, i.e., (that is, good, intermediate or poor. In view of the diagnosis, a method of administration of AMH may be pursued to increase probability of pregnancy or live birth chances. Alternatively, the administration of AMH may be at AMH levels that will terminate pregnancy or increase the chance of miscarriage.