My Nikon D3000 flash stopped working?

I've had it since December and I just noticed that the flash hasn't popped up for a while. I'll put it on Auto and it says that the flash is enabled, but it doesn't pop up.

Added (1). I tried to do that, to manually manage the flash but it doesn't pop up no matter what I do.

If you take it out of auto mode and put it into "A" mode, try pressing the flash button. Does the flash popup and work? If it does you're fine.

The reason why any photographer doesn't use auto mode is because it's very unreliable and doesn't always perform the way you want it to.