Talking, singing and reading to your baby before they're born might feel a little strange at first. After all, you can't see their face. You can't tell whether they're listening. And you probably won't get much of a response. But your baby isn't completely unaware of the world around them. As pregnancy progresses, their auditory system develops and they begin to hear sounds from inside and outside the womb. By the later stages of pregnancy, they can hear and respond to sounds