The baby is covered with fine hair
The baby is now about the size of a squash and weighs more than the placenta, which provides them with everything they need to grow and develop.
The way the baby looks is also changing; their whole body is covered by a thin and delicate fluff known as lanugo. This fine hair is believed to help the baby maintain body temperature [1]. Additionally, lanugo hair retains a wax-like substance that protects the baby from external influences in the womb [2]. Lanugo hair usually disappears before delivery.
At this time, the baby will periodically bring their thumb to their mouth and suck on it [2]. This is believed to be a type of preparation for nursing.
The mass of the baby’s brain is close to 3.5 oz (100 g) [3]. The number of connections between neurons allows the cerebral cortex to regulate simple movements. The baby can stretch both legs toward the wall of the uterus, bend both arms, and touch their face with their hands.
If your partner is expecting twins
Imagine she has two small zucchinis in her belly! Moreover, they are competing for territory, so she is going to feel significant poking from the inside, whereas other moms can probably compare their baby’s movements to the fluttering of butterfly wings.
What we can see on an ultrasound
The baby lies on their back with their left side facing the screen. The contours of the head and neck are visible, and the forehead, nose, and lips are clearly defined. The dark area around the chest is the baby's heart. In the picture, you can also see the diaphragm, a thin line that separates the chest and abdominal cavity.
The picture clearly shows the baby’s rounded belly and legs. The umbilical cord, which delivers nutrients from the mother's body to the baby, is also visible.
