Premonition?

Sammy, my darling boy, has been naming off family members lately.....you know, the usual suspects...."Mommy, Daddy, Grandma"...including the animals....but recently he has been including..."and sisters".  What the..?  I sure hope he doesn't know something that we don't!  Of course I mention this to a few folks at work...who happen to be pregnant, and what do they tell me......oh, it isn't good.  Both women tell me that their children started mentioning going back to the hospital to get another baby...or they just started drawing an extra baby in their pictures....did I mention...they are both pregnant?!  And did you also notice that he says "sisterS".....UGH.