Alexandra (Alex) Sundermann Archive — Page 1 of 1

Pregnancy test sensitivity depends on the timing of the test related to the expected menstrual period, but cycle length matters too. (courtesy of Alex Sundermann)
September 11, 2026

Study and new online tool help women make informed decisions about pregnancy testing

“Instead of giving patients a one-size-fits-all answer, the tool takes those findings and turns them into an individualized estimate,” said Alex Sundermann, MD, PhD.

By Danny Bonvissuto
January 21, 2026

Study details the downsides of testing for pregnancy too early

More than 40% of the women reported that they tested their urine for human chorionic gonadotropin, a hormone released by the placenta, four or more days before their expected periods.

By Bill Snyder
Alexandra Sundermann, MD, PhD, poses for a photo with an ultrasound machine. (photo by Donn Jones)
August 29, 2025

Discrepancies in gestational dating can inform miscarriage risk: study

Investigators measured whether gestational dating determined by ultrasound lagged what the last menstrual period predicted. The bigger the lag, the higher risk of the pregnancy ending in a loss, they found.

By Bill Snyder