L.M.
Get a Boy Cabbage Patch Kid or something related. My son is 3 and he use to hate dolls. I have my old cabbage patch preemie doll that he use to hold via the pacifier and drops it. But, now he plays with it and talks to it. Now, he understands that I have a baby in my stomach. I show him the monthly phases of a baby pic. He know the difference between a kid under 1 that is a baby and a womb. He use to be jealous when I hold my friends's babies. But I think he might be getting use to the whole idea.