I would say if it says 15 months in the EU, then the EU is wrong, because Padme is pregnant and Anakin is the father. And despite Lucas' squeamishness about showing any kind of a sex scene in the movies, I think we can safely assume that they made Luke and Leia the old fashioned way.
Jenn

on all white armor in AOTC, to many helmet designs
and personalized armor in ROTS, then back to one type of helmet
Just my thoughts on the matter. Maybe someone has a better idea.
