There is nothing wrong w/ staying in Induction longer than the two weeks, particularly if you have a significant amount of weight to lose. That being said - I wouldn't wait until you are at your goal weight to being the next stages. You may have to stay in Induction for 6 months, but eventually you will need to begin the process for finding what causes your body to slow down, stall out, or even gain. In the meantime... GREAT JOB!!