A study from Australia has found that there IS actually a magic number when it comes to having a family.
The Edith Cowan University researched this very issue and their findings might just blow your mind.
They studied hundreds of parents over a five-year period to find what makes the happiest parents.
And the answer....four children.
The lead author says that a large family can contribute to the contentment levels of both mums and dads.
The idea behind it is that they feel more supported socially, self-esteem is boosted and the children gain independence from a very young age because they always have a sibling 'buddy'.
Professor Harman told an Australian publication that "larger families are more chaotic and expensive, this is balanced out by the joy in their lives".
And we all know that happy kids make for seriously happy parents.
What do you think? Do you agree with the assertion that bigger families are the happiest?