It looked like a small bubble coming out of the baby's mouth. Tammy laughed and joked that her daughter was blowing bubbles. But the ultrasound technician didn't laugh. Instead, she paused.

My name's Chantel. I'm twenty three and my baby Cayden is almost five months old. Little ones are fascinated by the way they float and reflect all sorts of colours. Try blowing some and see how ...

For example, you could blow bubbles with your baby and build suspense by saying 'ready… steady' and then waiting for your child to respond with a word, sound or gesture before saying 'go' and ...