These devices may feel reassuring, but they aren't always giving you the full picture of your baby's health.

Heart rate is an important sign of fetal health, yet few technologies exist to easily and inexpensively track fetal heart rates outside of doctors’ offices. This can create risks for pregnancies in ...

For expectant parents, knowing their baby's heart is beating at a healthy rate can be deeply reassuring. So it's understandable that a device that allows parents to check their baby's heartbeat — a ...