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

A baby's heart starts beating at about five weeks into pregnancy and increases its rate by three beats per minute daily for the first month. The normal fetal heart rate ranges from 110 to 160 beats ...

Your baby's heart works in a way that is exclusively meant for life inside the womb before birth. The lungs don't provide you with oxygen. It originates from the placenta through the umbilical cord, ...