I have been trying to not worry about my LO and his speech. But he is now 21 months and I cannot get a word out of him. He babbles what sounds like Mum, but that's about it. My HV said it is nothing to worry about and that they will only do something about it when he is 3, surely that isn't correct? Is anyone else experiencing anything different? Or got any tips on things I can do to help progress his speech?