CES 2017: Pregnancy sensor seeks to ease worries for mothers-to-be

The Bloomlife Smart Pregnancy Tracker is shown which tracks and counts labor contractions at home at CES in Las Vegas, January 3, 2017. REUTERS/Rick Wilking

Molly Cruit attached a small device to her pregnant belly, and a few minutes later, a graph on her smartphone suddenly spiked. 

"Oh my god!" the 38-year-old Portrero Hill resident exclaimed.