Your baby is about the size of a mango — roughly 6 inches long and weighing around 8.5 ounces. This week marks a major milestone in sensory development.
All five senses are coming online. Your baby's brain is designating specialized areas for taste, smell, hearing, sight, and touch. Nerve cells for each sense are developing and forming connections that will continue to refine throughout pregnancy and after birth.
A protective coating called vernix caseosa is now covering your baby's skin. This thick, white, waxy substance serves multiple purposes — it waterproofs the skin against constant exposure to amniotic fluid, provides insulation, and has antimicrobial properties that help prevent infection. Think of it as nature's moisturizer and body armor combined.
Your baby can now taste the amniotic fluid, which carries subtle flavors from your diet. Research has shown that babies swallow more amniotic fluid when it tastes sweet, suggesting that taste preferences may begin forming in the womb. Your baby also responds to touch — if you press on your belly, you may get a kick back.
Since last week, the nervous system continues to mature, and your baby's movements are becoming stronger and more purposeful.