Here’s some advice for anyone out there about to become a parent: Your little “bundle of joy” might make you more depressed than you’ve ever been in your life. Sorry.

A new study found that two-thirds of parents become UNHAPPIER after their baby is born.

In fact, they experience the same drop in their level of happiness as people do after a divorce; getting laid off; or even after their husband or wife dies.

The researchers think the main reasons are: a lack of sleep; tons of stress in your relationship; and feeling like you’ve lost your freedom and control of your life.

On the bright side, the study found that you can bounce back to being happy eventually. Couples who have a second child wind up happier than they ever were before.