A broken egg is traditionally read as a plan or hope disturbed before it was ready. It can also mean that something hidden has come out, for better or worse, and needs to be dealt with.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.