Updates on Chinese and Spanish! Why is my toddler learning foreign languages?! His fluency? 

When did you introduced foreign languages to your child? and, which method did you use? I'm preparing the materials to use Glenn Doman's Program starting at birth. I'm making my own red word cards in Spanish since I'm a native speaker and also will be using the original red word cards that comes with the program in English, I'm just a little bit insecure of when to introduce new languages.