Patients who have difficulty conceiving naturally often seek medical advice. These patients often undergo initial treatment with insemination using oral or injectable medications. However, if this fails to achieve a pregnancy, patients often undergo in vitro fertilization (IVF). IVF is a process which involves a protocol of injectable medications to stimulate the ovary to produce several eggs at once. These eggs are retrieved under ultrasound guidance and fertilized in the laboratory. After 3-5 days of growth in the laboratory, the appropriate number of embryos is then transferred back to the patient's uterus.