Anti-Mullerian Hormone, or AMH, is a hormone secreted by very early ovarian follicles. Measuring the level of AMH in your blood stream is known as an AMH Test, or an Egg Reserve Test. Recent studies have demonstrated that measuring the concentration of AMH in a woman’s blood has been shown to be a good predictor of a woman’s egg reserve, also known as Ovarian Reserve – put really simply, how many eggs a woman has left.