- Biparietal diameter of foetus: 32 to 40 mm
- Weight of foetus: approx. 110 g
When you look in the mirror you can see that your features have become softer. Water retention under the skin smoothes out little wrinkles and makes the skin appear smooth and firm. Spots and blackheads might also appear. Additionally, some women lose hair.
The bones of the foetus become dense and hard, and the blood vessels shine through the transparent skin. Body fat is stored and a woolly fluff, the lanugo hair, covers the body; this soft hair is present in order to fix the vernix caseosa, which protects the skin from amniotic fluid. Hair starts to grow on the head, and eyelashes and eyebrows form.
Nerves and muscles are completely connected to each other, which means that your child is able to move all its joints freely. It makes ample use of this ability, as there is still enough room for sporty endeavours. The foetus loves to play with its umbilical cord. The face muscles are working already and your baby can make faces.
The thyroid gland commences production of thyroid hormones, which is important for the continued growth of your child.