Your baby is about 8.5 cm long (crown to rump), roughly the size of a kiwi, and weighs around 42 grams, almost double from last week.
Hair is starting to grow on the scalp and eyebrows, and a fine coating of hair called lanugo covers your baby’s body. This helps keep your baby warm until body fat develops, though lanugo may be present in preterm births.
The baby’s neck is getting longer and straighter, making the whole body appear more upright. Your little baby can now turn their head from side to side.
Even facial expressions are developing! Your baby may be able to smile or frown, kick, curl their fingers toward their mouth, and even start thumb-sucking.