what are the requirements to be a egg donor?
['Between the ages of 21 and 31.', 'Physically healthy.', 'Have a BMI 19-29 [BMI Calculator]', 'Non-Smoker.', 'Have regular, monthly menstrual periods.', 'Not using contraceptive implants or Depo-Provera injections as a form of birth control.', 'Have both ovaries.', 'Psychologically healthy.']