No. No one is saying that you shouldn't love your dog or show her affection. Just that you are going to need to be extra careful with her to make sure she doesn't ever breed because you would be playing Russian roulette with the health of both your dog and the puppies. Unfortunately, no matter what a pet store tells you, they DO get their dogs from puppy mills that make their money by breeding without regard to the health of the line
The easiest and best thing to do is get her spayed prior to her first heat. And encourage your friend to do the same with her pom.
As for her coat color, you won't be able to tell fir sure at this age. Some of the breeders here will tell you that it could take up to two years before her adult coat is fully in. If by some miracle you could track down ACCURATE pics of the dam and sire, it would still only give you a clue but not a guarantee of her final coloring. I would hazard a guess that most registrations will say the parents are black and tan because they were at the time of their registration before breaking their color.
Good luck with your puppy.