The embryo in dreams could represent the desire to get pregnant the dreamer has. Maybe you are ready to take the responsibility to become a parent? It is a very common dream for the women who are expecting the child to dream about the embryo, which is only a reflection of reality and means nothing. The embryo could also symbolize new tasks and ideas.
Dream dictionary: Embryo dream meanings
Dreaming about an embryo signifies the appearance of a new idea or new plan. Also, your subconscious feelings may be surfacing your conscious mind. Alternatively, it may refer to your feelings of vulnerability and your need to be defended. However if you are pregnant, it is reasonably common to see the embryo in your dream.
To dream that you see a zygote in your dream, means that you are looking after someone in your life and taking the responsibility for that person. The dream in which you are expecting the baby could mean that you are actually pregnant, but doesnt know it yet. It could also mean that you wish to become pregnant.