I only print 10x10 and I make my pages at 12x12 or 10x10 and they all fit in the books...you just have to pick the book DigiScrapping one near the bottom of the choices:
I went and looked at your gallery and there is only one that might lose a bit:

because the journaling is a bit close to the edge.
Here is actual book pics:


and here is the page

and

the edges are a bit lost...
I have learned to keep anything I really want to see away from the edges(called bleed) to make sure it can be seen.
here is a double page I did, that I should have brought the page in more.


now your covers are smaller too...but you can move them around...
back cover:
you can see the missing parts

and be ready!!
there are usually codes all over the site for free shipping and 30-50% off your book...and
when you get your book, there is coupon in the box...so you have like 10 days to do another book...
Please, please show pics when you get it back!