X got married and has a new baby on the way. He has paid 400/per kid/per month for 2 years now. He is saying now that he is having a fourth kid that it needs figured into the child support as well. Therefore each of my kids should get $100 less, so that all 4 get an equal $300/month. Umm, hello you live with the other child, you don't have to pay support for it.