Well there are some individuals who believe that aliens do exist (on earth). They are making their own seed line of "Hybrids" (part human, part alien). In an attempt to "evolve" the human race.
So the baby is one of the "seed line" and is a "hybrid" of these aliens.
That is one interpretation of the dream, how that applies to you; I won't put answers in your mouth.
I am not saying I do or do not believe this, just an interpretation.
