26 weeks

The network of nerves in your babies' ears is better developed and more sensitive than before. They may now be able to hear both your voice and your partner's as you chat with each other. They're inhaling and exhaling small amounts of amniotic fluid, which is essential for the development of their lungs. These so-called breathing movements are also good practice for when they're born and take that first gulp of air. And they're continuing to put on baby fat. They now weigh about a pound and two-thirds and measures 14 inches (an English hothouse cucumber) from head to heel.