How much does she weigh? Is her enclosure in a high-traffic area of your house? How many hides does she have to choose from, and are they secure dark hides or are they the half-log ones?
Realistically, 2 weeks isn't a big deal for a ball python, though it can be really nerve-wracking the longer they go. Double-checking your husbandry never hurts, make any improvements you can find, and try to be patient. I understand that they'll usually eat when they're ready. Dependent on her size and age after some time (much more than 2 weeks) if she started losing weight you could attempt to feed a live mouse as long as you helicopter over her to make sure she doesn't get chewed on. Intermediate steps would be fresh-killed or even braining a F/T pup if you have the heart for it.
My pastel girl was feeding strong on F/T when I first got her, then she went off feed about 6 months ago and the only thing that got her eating again was live prey. She got up to about 1200 grams and I was getting excited about breeding her soon, then about 6 weeks ago she went off feed again. Jerk. But it happens, it's all part of owning Ball Pythons.