Okay so, the reason why kaze wanted to adopt a child instead of being pregnant is because after seeing other children losing or abandon from their parents, they really needed a real home where they can spread the wings to happiness. Plus, Kaze felt the same way when she was created and was abandon when Luna left them to be raise by Pacha as their Guardian. So yeah, There you have it forks. Ame and Kaze is Going to adopt a child to the family!!! ｡^‿^｡