The baby's crown to rump length is 12 cm (3.2 to 4.5 inches) long and he weighs approximately 1 ounce now. The baby is about the size of the average fist.
At this time, the baby's face is becoming more developed. The cheeks and bridge of his nose appear and the ears move from the sides of his neck to much higher on his head. The eyes continue to come closer together.
A big development from this week onward is the development of lanugo. Lanugo are the fine hairs that grow over almost all of your baby. The hairs grow in whirled patterns that follow the grain of his skin. These patterns later give way to the baby's fingerprints. The lanugo will be shed before birth and replaced by thicker, coarser hairs.
The baby's thyroid gland has matured and starts to produce hormones.The embryo`s soft cartilage is now being replaced with ` real` chalk bones.
The baby has eyebrows, but no eyelashes. Fine, light hair also begins to grow.
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