The Pregnancy Tracker is designed to give you a quick and easy way to see the current progress of your pregnancy. The easy to read display shows you the Estimated Due Date (EDD), the Countdown (time left until your baby arrives), Gestational Age (age of the baby), Trimester you are on, and an approximation on the size of the baby for the current week you are on. The size is now viewable with either English Units or Metric Units.