At 20 weeks you’re halfway to your delivery date. Baby weighs around 10 to 11 ounces and keeps its legs curled up against its torso making it hard to see how long they are. When you have your 3D 4D and HDLive Ultrasound at 20 weeks or before the length of your baby is measured from the crown its head to its bottom. After 20 weeks your baby is measured from head to heel.
More 20 Weeks Baby Pictures