23rd weeks
- The fetus reaches a length of 28 cm (11.2 inches).
- The fetus weighs about 925g.
- Eyebrows and eyelashes are well formed.
- All of the eye components are developed.
- The fetus has a hand and startle reflex.
- Footprints and fingerprints continue forming.
- Alveoli (air sacs) are forming in lungs