You will have to file an application with the Court seeking enforcement and possible modification of your agreement. Your ex-husband has an obligation to pay your alimony and he must pay alimony to you until a court orders or you agree otherwise. As that has not happened, he is in violation of your agreement/the court’s order. With regard to child support, this would be dependent on the language of your settlement agreement/court order. From your post, he technically has done mothering wrong, as there is no childcare cost, he has nothing to pay; however, you may be able to argue that there has been a substantial change of circumstances warranting modification of your agreement or order because the present situation has created an inequity which is harmful to your children. You should speak with an experienced family law attorney to ensure your interests are protected.