The study is designed to evaluate a new imaging modality, 3-dimmensional sonographic volumetric analysis, and compare it to the conventional 2-dimmensional analysis that is currently in place. Those patients who are scheduled to have an ultrasound as part of their infertility treatment will be offered the opportunity to have additional measurements done at the time of their ultrasound; these additional measurements will take less than 2 minutes and do no require any additional sonograms, tests, or interventions. All patients are eligible (oocyte donors and autologous oocyte patients) and only patients with a serum estradiol > 2000pg/ML will be enrolled in the study. After the additional measurements are obtained, the results will be digitally stored. The results of the 3D sonographic volumetric analysis will then be correlated with the patients' IVF performance.