Inclusion Criteria:

1. Pre-menopausal females between the ages of 18 and 42 years
2. Body mass index (BMI) of 18-34
3. Early follicular phase (day 2-4) FSH <15 IU/L and E2 within normal limits
4. Documented history of infertility (e.g., unable to conceive for at least one year, or for 6 months for women >38 years of age, or bilateral tubal occlusion or absence, or male factor but excluding severe male factor requiring invasive or surgical sperm retrieval. Donor sperm may be used.)
5. Transvaginal ultrasound at screening consistent with findings aquedate for assisted reproductive technology (ART) with respect to uterus and adnexa
6. Signed informed consent

Exclusion Criteria:

1. Gestational or surrogate carrier, donor oocyte
2. Presence of any clinically relevant systemic disease (e.g., insulin-dependent diabetes mellitus, uterine cancer)
3. Surgical or medical condition which, in the judgment of the Investigator or Sponsor, may interfere with absorption, distribution, metabolism, or excretion of the drugs to be used
4. Previous IVF or ART failure due to a poor response to gonadotropins. Poor response is defined as development of 2 mature follicles or history of >2 previous failed IVF cycles.
5. History of recurrent pregnancy loss (>2).
6. Presence of abnormal uterine bleeding of undetermined origin
7. Current or recent substance abuse, including alcohol or smoking >10 cigarettes per day
8. Refusal or inability to comply with the requirements of the Protocol for any reason, including scheduled clinic visits and laboratory tests
9. Participation in any experimental drug study within 30 days prior to Screening
10. Severe male factor requiring invasive or surgical sperm retrieval (e.g., microsurgical epididymal sperm aspiration [MESA], testicular sperm extraction [TESE])