Pregnancy in a dream can represent a new phase in ones potential or in developing one's personality. It can mean that the dreamer is developing a closer relationship with his or her unconscious. It can also mean that you have a new plan or idea that is developing.
For a woman, pregnancy in a dream can represent a desire to have children. Alternatively, it can represent a fear of being pregnant.
If the dreamer is actually pregnant at the time she is having the dream, such dreams might be the manifestation of anxieties about the pregnancy or giving birth.
Some scientific research has shown that women who experience a high percentage of anxiety in their dreams actually deliver their babies in a shorter period of time. The conclusion of this research was that such dreams helped prepare the women for childbirth and helped them to be more relaxed during labor.