Oh ha funny you should mention that! I know I am going to have facing page challenges. So far, I have the same approach, the short week 1 is the opening right-side page, then weeks 2 and 3 are facing pages.
I just tonight finished a supplemental page for week 4, since I realized I left out some important stuff ( I think I need to do PL in 2014!). At this point I have no idea if the pages will work out evenly, but I will deal with them as I go!
Back to work!