A portable and compact gender predictor apparatus intended as a novelty device comprised of a heart beat monitor, an indicator for gender, and a sensor, which predicts the gender of an unborn baby based on the heart beat rate of an unborn baby. In the preferred embodiment, the sensor detects the heart beat rate of an unborn baby when placed on the abdomen of a pregnant mother, and the heart beat monitor displays the heart beat of the unborn baby. When the heart beat rate of the unborn baby is 140 BPMs or higher, an indicator for the female gender is activated, and when the heart beat rate of the unborn baby is less than 140 BPMs, an indicator for the male gender is activated.