A revolution has happened in prenatal testing. Ushering in this change is a new prenatal test that relies on a simple blood sample collected from a pregnant woman. From the beginning of pregnancy, cell-free fetal DNA travels across the placental lining into the mother’s bloodstream, increasing in quantity as the pregnancy progresses. Potential parents can test that DNA for chromosomal abnormalities and for fetal sex after ten weeks of gestation, which is several weeks before a reliable ultrasound and seven weeks before an amniocentesis can be performed. As numerous newspaper and popular media articles report, what women can discover during their pregnancies will continue to evolve dramatically over the next ten years. This new non-invasive prenatal test (“NIPT”), coupled with advances in gene sequencing, could give parents information about all manner of traits, disorders, and propensities—from susceptibility to serious diseases, such as cancer and heart disease, to superficial traits, such as hair and eye color. The test is easy to perform, close to 100% accurate for fetal sex, and currently in clinical and commercial use.