3d rendered medically accurate illustration of a fetus in week 13

Starting from now on, babies grow at different paces, some faster than others. However, they all follow the same developmental path. Therefore, all measures of length and weight will be averages going forward.

His fingers have unique fingerprints.

Tiny bones begin to form in his arms and legs. His intestines, which have been growing in his umbilical cord, are moving to the baby’s abdomen. The placenta is also growing. Your baby’s vocal cords are developing. Your baby’s eyes and ears are now clearly identifiable. The eyelids are fused together to protect the developing eyes and will remain so until the 30th week. Your baby is now able to move his arms/legs in a jerky fashion. Your baby might be able to put his thumb in his mouth.