Stress Level and the Relationship With IVF Outcomes.

Inclusion Criteria: * Healthy women undergoing IVF at CRMI Ages 20-44 Patients will be divided in different groups depending on whether: 1. They are donating oocytes (control group). 2. They are undergoing IVF for the first time. 3. They are undergoing IVF for the third time and have either failed or succeeded the prior time. Exclusion Criteria: * Any patients who are not candidates for IVF * Any women who have any past or current medical condition unrelated to their infertility concurrent to their history of infertility (e.g., gastrointestinal disease)