The purpose of this study is to demonstrate that the Eeva System may be used to identify embryos on Day 2 that are most likely to form blastocysts.

Inclusion Criteria:

• Women undergoing fresh in vitro fertilization treatment using their own eggs or donor eggs.
• At least 18 years of age.
• Total antral follicle count of at least 12 as measured by ultrasound prior to stimulation.
• Basal FSH < 10 IU.
• At least 8 normally fertilized eggs (2PN.)
• Fertilization using only ejaculated sperm (fresh or frozen) - no surgically removed sperm.
• Willing to comply with study protocol and procedures and able to speak English.

Exclusion Criteria:

• Planned preimplantation genetic diagnosis or preimplantation genetic screening.
• Gestational carriers.
• Use of reinseminated eggs.
• Concurrent participation in another clinical study.
• Previous enrollment in this clinical study.
• History of cancer.

Women in the United States who undergo IVF treatment and imaging of their embryos with the Eeva System.