Biggest Loser Coming to an End

Today I weighed in and lost 2.4lbs which was very exciting for me as I wasn't sure if I lost any.  The bad news is that today is Week 13, which means I only have 3 more weeks of the biggest loser co-workers to keep me motivated.  I am worried that after the 16 weeks I won't be as motivated as I have been and then I won't reach my goal.  I need to find a good motivation and I think I figured out what it will be.  This may sound silly to some, but I tried on my FAVORITE pair of jeans last night and they still don't fit.  So my motivation is to try on those jeans every week until they fit!