Follow the instructions you've been given on when to leave for the hospital. You may be told to call your doctor when it becomes hard to walk or talk during contractions or if your amniotic sac breaks (this causes a gush of water). If your partner makes the phone call for you, be nearby. That way, your doctor can speak to you directly. Many women are told to go to the hospital after an hour of contractions that come 3 to 5 minutes apart. Leave sooner if the hospital is not nearby or is hard to get to.