I was advised by everyone, including HV to speak my native language to DS (DH is english speaking and we speak english to each other). He is now two and speaks gobbledeegook, still. He does speak in single words, not always easy to make out and certainly not in sentences like his cousin (only 3 months older). He does go to nursery and interact (in English), and says no and don't a lot (in English again). I wonder if I have made a mistake and confused my son, his frustration in not being able to communicate well makes him bad-tempered and we fall out when unnecessary. Does anyone have similar experiences and advice. How much longer than normal might his speech development take?