- low ovarian reserve (At least one of the following two features must be present: (1) a previous poor ovarian response (≤ 3 oocytes with a conventional stimulation 119 protocol); (2) an abnormal ovarian reserve test (i.e. AFC < 5 follicles or AMH < 0,5 ng/mL)* (adapted from Ferraretti et al., 2011);