Dreams about pregnancy often symbolize the development of new ideas, projects, or aspects of yourself. Being pregnant in a dream can reflect feelings of creativity, potential, or anticipation of change in your life. The message from the "invisible hand" suggesting "you don't need a boy" could indicate a few things:

1. Independence: This could symbolize a desire for independence or self-sufficiency. It might suggest that you're recognizing your own strength and the ability to create or nurture something on your own, without relying on others.
2. Self-Acceptance: The message may point to the importance of accepting yourself as you are, without the need for external validation or support from others, particularly in the context of relationships.
3. Rejection of Traditional Roles: This could represent a rejection of traditional expectations surrounding gender roles, particularly if you feel societal pressure to have a partner or family in a specific way.

Reflect on your current life circumstances and feelings to see how they relate to these interpretations. Are there areas in your life where you feel the need to assert your independence or explore your own identity?