In some cases, it can be tricky to tell if a child is taking a bit longer to reach a developmental milestone than their siblings or friends, or whether they're having speech and language delays. There are a few key signs of speech and language delays to keep an eye out for before they are two years old:
Not using two word sentences by two years old
Finds it hard to follow instructions
Has a hard time putting words together to form a sentence
Leaving key words out of sentences
Has trouble understanding what has been said to them
Not saying individual words by 15 months old
Their speech isn't clear and/or is hard to understand