You're 15 weeks pregnant and as you both continue to grow, your baby now measures about 12cm. Bones are beginning to harden and fine downy hair called lanugo is starting to appear on their skin (which is still very thin and transparent). Your baby now has tastebuds and is starting to make different facial expressions as facial muscles develop and eyebrows form – all of which makes them look more baby-like. Your baby is busy inhaling and exhaling amniotic fluid which helps their lungs develop. Their legs are growing longer than their arms and, in anticipation for all those kicks later in your pregnancy, your baby can move all of their joints!