Digests food and excretes. Tests can determine gender. 14th week - Opens mouth and swallows regularly. 15th week - Lower limbs are well developed and toenails start to form. 16th week - All 20 teeth buds are in place.
Mother feels movement.
Reacts to outside noise and vibrations. 22nd week - The baby can hear and recognize mother's voice. Sex organs are visible. Baby can open its eyes. 24th week - Sweat glands are developed.