There are many factors that can affect the cost of putting in a pool: 

Price affecting factors can be extensive so essentially it would be impossible to give an exact quote without seeing the job site and knowing exactly want options you want in your pool.  The below scenarios is just to give you a few examples of what might be typical costs on a project so that you can see if it is within your budget expectations. This exercise is just to give you and rough idea but not an exact price.