When I was pregnant with my first son I craved peanut butter.  I ate a serving at least once a day.  When my son was of age to eat peanut butter he loved it!  I was telling my mother about it and she said when she was pregnant with me she craved peanut butter, but never cared for it prior.  Guess what?  When I was of age to eat peanut butter I loved it!  It shows that if we listen to our bodies and eat healthy, we will eat just what we need to make our babies happy! :)