Pregnant

To dream that you are pregnant symbolizes an aspect of yourself or some aspect of your personal life that is growing and developing. You may not be ready to talk about it or act on it. Being pregnant in your dream may also represent the birth of a new idea, direction, project or goal. Dreaming that you did not realize you were pregnant implies that you are in denial about something. You also have a tendency to ignore things until it is right in front of you. Alternatively, if you are trying to get pregnant, then the dream may be a wish fulfillment. If you are not trying to get pregnant, but dream that you are, then it symbolizes fear of new responsibilities.

There is half a page more explanation on the site*