An inventive, interactive book that shows how a baby grows inside its mother's tummy over the nine months of pregnancy. Each of the 9 months is explored over a double-page section using an ingenious half-page flap to reveal what is going on inside a mum's tum and clearly showing how a baby develops. The lively but detailed illustrations, the clear, friendly text and the gentle humour make this book perfect to share with a child to explore where they came from or to discuss what is happening when a new baby is on its way.