An interesting story in the New York Times today explores the ease with which noninvasive prenatal diagnostics can now determine paternity, even when the pregnancy is only eight or nine weeks old. Multiple companies are now offering such tests, which require only blood samples from the mother and from the potential father to determine paternity long before the pregnancy culminates.
On a February night last year, Sean Monagle got the phone call he’d been waiting two months for: Some 100 urine samples from pregnant women were ready for his analysis. A technician delivered them to his dorm, and Monagle, then a senior at Johns Hopkins University, raced off to his lab. He knew this was his chance to test his potentially lifesaving invention.