I'm building a new laundry room and I want to make sure I didn't mess up the wiring. There was an existing 12/2 cable coming off of a 20 amp breaker. There was nothing but a flourecent light connected to it. I spliced into it with several runs of 14/2 cable. There will be 3 flourescent lights, a very small bathroom fan and 2 receptacles. The only thing that will be plugged into the recepts is a steam iron. The lights are on one branch and the recepts ware on a separate branch. Did I screw up?