Basically the challenge with maternity leaves is if they drop down to part time and STAY you need to be either certain you have a space for the second child when the time comes OR make it clear that there is no guarantees that keeping the oldest child in care = space for second child and so forth cause if the time comes and you are FULL things get get nasty cause they 'assume' that keeping in oldest sibling means guaranteed space for new sibling ~ so you basically could be holding TWO spots open in your program for a year???

Whatever you choose just make sure your butt is covered with how your written arrangement is made!