Set the Birthdate. Hit the Calc button and the program will work out for you the current age in days/weeks/months/years. The latter two are only approximate. The i button will tell you the day of the week.
Hit the up or down arrows and you will get the new date x weeks/days in the future. If you hit the Schedule It! button, you will be taken to the Schedule screen (see below)
You'll note that the schedule date is automatically what you set earlier. You can now set the time and alarm the usual way. If you check the Agnd checkbox, the Name will be enclosed in brackets e.g. [Smith, John] so that it will appear as a contact link in Agendus' day view (in case you are an Agendus/Action Names user like myself). To add the appoinment in your Calendar, hit the Add button.
You can also access the Schedule screen from the Main Menu for quick scheduling of appointments.
A simple pregnancy calculator. Set the LMP and you'll get the Expected Delivery Date and current Gestation. You can also work out other gestation dates using the arrow keys.