His movements are getting wider. His ossification is well established. Bile secretion has begun as well as some hormonal secretions (thyroid). The thymus (growth gland) now contains lymphoid tissue (cells that provide the immune system).
You can now know the sex of your baby and his kidneys begin to secrete urine.

This week


Baby measures about 11.5 cm (head to heel)


Baby weighs about 45 g