Dreaming about being pregnant and giving birth can symbolize new beginnings, creativity, or the development of a new aspect of yourself. In your dream, the setting in Walmart, which is a place of shopping and variety, might suggest that you are exploring different possibilities or choices in your life.

The fact that the baby girl is your crush's child could represent your feelings and desires related to that person. It may indicate your hopes for a future connection or the potential for a relationship. Alternatively, it could reflect your wish to nurture or cultivate a deeper emotional bond with your crush.

Overall, this dream might be urging you to consider your feelings and aspirations regarding your crush and how they relate to your personal growth and future possibilities. It may be worth reflecting on what this relationship means to you and how you can express your feelings in reality.