Inclusion Criteria:

- Age 27-43 years

- Diagnosis of infertility due to endometriosis, severe male factor, tubal occlusion.

- Patient undergoing IVF

Exclusion Criteria:

- Body mass index (BMI) > 38 kg/m2

- Abnormal uterine cavity as evidenced by sonohysterogram or hysterosalpingography

- Any current use of systemic steroid medication or any infertility treatment within 3
months of study enrollment.

- Any contraindication to being pregnant and carrying a pregnancy to term.

- Any ovarian or abdominal abnormality that may interfere with adequate TVS evaluation.

- Absence of one or two ovaries

- Clinically relevant systemic disease (e.g., Insulin-dependent diabetes, adrenal
dysfunction, organic intracranial lesion, polycystic ovarian syndrome,
hyperprolactinemia, or hypothalamic tumor) or serious illness (Neoplasia).

- History (within past 12 months) or current abuse of alcohol or drugs.

- Administration of any investigational drugs within three months prior to study
enrollment.

- Any medical condition that may interfere with the absorption, distribution,
metabolism or excretion of the study drugs, gastrointestinal diseases, mal absorption
syndromes and liver dysfunction

- Unexplained gynecological bleeding.

- Ejaculated sperm is not sufficient for ICSI

- Patient not able to communicate adequately with the investigators and to comply with
the requirements of the entire study.

- Abnormal COH screening blood done for both partners, including: prolactin, thyroid
stimulating hormone, HIV serology, Hepatitis B and C serology, Rubella, group and
screen and syphilis serology prior to participation in study.

- Unwillingness to give written informed consent. Previous entry into this study or
simultaneous participation in another clinical trial.