Keeping the Pattern

We asked Jacob what he thought we were having.  Boy or girl?  He said, "It has to be a girl.  It is a pattern Mommy (in a tone of voice that sounds like "duh Mom")."  He pointed at himself, Zoe, Peyton, then my belly.  "Boy, girl, boy, girl.  See Mommy."  Well Jacob was right.  We are having a girl!