Your level of AMH helps to predict how well your ovaries will respond to stimulation during an IVF cycle. It can be used to tailor the stimulation drugs to an individual patient and can predict which patients may expect low or high egg numbers and which patients are at a higher risk of ovarian hyperstimulation syndrome (OHSS). Patients with a low AMH  do have lower pregnancy rates but the degree of this reduction is more age-related, with patients 39 years old and older having lower chance of pregnancy than patients with the same AMH who are less than 39 years old. Pregnancies have been reported in patients with very low or barely detectable AMH levels but patients with a low AMH (less than 3.1 pmol/l) also have an increased risk of failed fertilisation across all age groups.