A new, inexpensive and non-invasive fetal visualization process helps to locate fetal body parts and identify fetal positions without exposing the fetus to prolonged ultrasound irradiation. Associating location data with biological electrophysiology signal patterns and/or light absorption/reflection-related tissue-specific local fetal body composition data enables the generation of a 3D anatomical and functional map of the fetal body through the expecting mothers womb, which will be essential for long-term home monitoring of a fetus during pregnancy.