Yes, you are within 5 unrelated children, isn't that what the DNA states? Then the others are your own children.

I go to other daycare providers houses all the time for playdates and there will be 2 or 3 of us with 10-15 children in a nice big back yard. I can't see the difference if we are in a nice fenced yard or at a big park where it's harder to keep track of your children. But each of us are within our limit of 5 unrelated children.