Ok first off, calm down. All caps and exclamation points flying every which way is a bit much.
Secondly, what sex of hamsters did you get? As we both know, a boy and a girl eventually results in babies.
It may not have even been your fault. I've had accidents from pet store errors, nothing like buying a female guinea pig and 2 months later she drops out two cute babies. Apparently they had a not-so-developed male running around in the female bin.
If you don't want them, you can get rid of the babies in a humane fashion. Or you can raise them up and sell them off before they are able to re-breed back to the mother. Or you can keep them and start a collection.
Things don't always go according to plan. If you only wanted pets, I would definately try to re-sex your original hamster(s) and see if you have a pair. If not, then she most likely got pregnant at the pet store. Regardless, you've got babies now so there's nothing to worry about. She should take care of them on her own.