So my question is how do I have more children in the sims 3 pets for xbox 360? I currently have mom, dad, 3 kids and a dog. But on both wish lists (mom and dad) it says "have a child" and "have five children" but when I try for another baby it says there are too many sims in the house to have another baby. Right now my three kids are school aged twin girls and a teenage son. Do I need to move to a bigger house or is it not possible to have more?