Gene Expression in Cumulus Cells to Predict Pregnancy

Inclusion Criteria: * Aged 21-39 years * IVF cycle 1 or 2 * BMI \<35 * Fertilization method: ICSI and/or IVF * Day 3 or day 5 embryo transfer * Treatment cycle intended for single or double embryo transfer * Use own oocytes, not oocyte donor * ≥ 3 embryos at final assessment * Donor sperm acceptable * Willing to comply with protocol and study procedures Exclusion Criteria: * Polycystic Ovarian Syndrome * Presence of fibroid(s): \>4 cm intramural or submucosal fibroids * History of chemotherapy or radiation to the abdomen or pelvis * Use of donor oocytes * Use of reinseminated oocytes * Preimplantation genetic diagnosis or preimplantation genetic screening during current IVF cycle * Concurrent participation in another clinical study * (Male): Surgically removed sperm * (Male): \<5 million sperm count