Is this considered me working?

You have a very important job in that household. If I'm guessing correctly you handle the kids, most if not all of their activities, clean the house, cook the meals, and do the laundry. Next time they say you are not contributing teach them a lesson. Quit doing stuff for them and when they complain state you will no longer be doing those chores unless they pay you so that you can contribute monetarily to the household. My guess is that they will learn to appreciate and respect you in a very short amount of time.