We're talking about puppy nipping, not another behavior problem of an older dog challenging his owner. Let's not make a mountain out of a mole hill. I'm quite sure that the poster has every intention of handling her dog in a sensible way, otherwise she wouldn't have come here and asked for help.
If we catch a cold, do we all run around like a chicken with our heads off, frantically worrying that we've got a cold, but now we're destined to have pneumonia? Ok....rotten analogy. How 'bout this? We have a pup who peed on the carpet once or twice. Do we think, "Oh no! This pup is going to be an adult who will be peeing all over the carpet."(?) No, we figure that by the time the pup is older and we've had time to show it, it's had time to learn, that it will be peeing outside. Why else would anyone ever get a puppy?
Pretty much all puppies nip. Do they all turn out to be vicious, challenging rejects? And the ones that do bite, growl or challenge their owner, I can almost guarantee that simply not teaching bite inhibition in and of itself wasn't the cause. There are multitudes of reasons...a whole underlying thing, an attitude and handling of the dog. One facet in and of itself isn't usually the culprit. I have every confidence that this puppy will learn just fine how to stop nipping. It really isn't a monumental problem. It's normal and shouldn't be made into such a big deal.
I really don't think freaking out the original poster by putting worry into her head that her normal, nipping puppy is soon going to be backing her into a corner, viciously growling and controlling the household is productive. That's kind of.....way out there.