When you first find out you're pregnant, you probably aren't thinking much about your cervix. But this tiny organ is already preparing for your baby. It softens, lengthens, elongates, dilates, thins, and does all sorts of interesting things right up to the moment your baby is born. Learn more about what causes these changes and what it means for your labor and delivery experience! Learn more about your ad choices. Visit megaphone.fm/adchoices