During this week your baby has become about 24 cm long and weighs more than 400 g.
With his/her mouth’s movements, the baby already imitates sucking. He/she can even put his/her finger in the mouth skillfully while raising arms. Furthermore, he/she turns his/her head around as if he/she is trying to see you.
Even though you think this happens very slow, the increased size of the nails and the down that covers his/her body clearly shows that your baby constantly grows. His/her hair is sparse and thin, soft as silk.
His/her lungs continue their development, and the respiratory movements become more frequent.