Ah, Lisa, if you are trying to scoot back, that is probably to get your knee properly aligned with the pedal axis. Women have longer femurs than men, so I also have my saddle set up on a seatpost with as much set back as I can get, and prefer a bike with a shallow seat tube angle (yet oddly many womens and smaller sized bikes have steep seat tube angles. ) But, once my saddle is set up correctly, I will still try to move too far forward if my forward reach is too long (i.e. top tube, stem and bars together are too long). I think you moved you saddle back after installing a shorter stem and a shorter reach bar cuz you had properly adjusted your reach so that you could sit correctly on the bike.