Dreaming about being pregnant often symbolizes the emergence of new ideas, projects, or phases in your life. Since you mentioned that you were surprised but happy when the baby "popped out," this could suggest that you are experiencing or will soon experience a realization or creative breakthrough that you were not initially aware of.

The feeling of happiness associated with the birth in your dream may indicate that this new development is something positive or fulfilling for you. It could also represent potential growth or transformation in your life, whether that be in your personal life, career, or relationships.

Overall, this dream might encourage you to embrace new opportunities or changes that are coming your way, even if they catch you off guard. Consider reflecting on areas in your life where you feel ready for growth or new beginnings.