Make sure the litter box is small, kitten sized, so that she can easily get in and out of it. If you have too, get a second one, so she can find it quickly. Your place probably seems huge to her.
For my cats I like Nature's Miracle. It's 100% natural, flushable, and there is very little dust to it. And yes, cats love to dig!
If by tomorrow you still don't see signs of her having pooped, start checking in dark places, under your bed, in corners, behind a box, places where she could "hide" to do it. If you do find some poop, don't throw it out, put it in the litter box. The smell of her poop will tell her this is where she is supposed to do it.
Get some Nature's Miracle to clean up and pee and poop stains. It works really, well. I've had a lot of success with it. But for pee stains you have to pour generously enough so the liquid gets all the way down to the under padding of the carpet, so as to completely get rid of the smell.
Be patient with your kitten she is still very young and won't have full control of her body functions.
Keeping her restricted to your room for now might be a good idea.
Yes I have heard that cat attracts can help.
Look for signs that she is getting ready to do it. Kittens usually will go in circles, dig or paw at the area, look furtive, sniff at the ground, and usually search for a corner or dark place, then they will squat.
Also when washing the litter box, just use plain old dish soap and hot water. Please don't use heavy bleach or harsh chemicals. We may think we are doing a good thing by using bleach or other chemicals to disinfect the box, but we're not. In reality, we are really only disinfecting the box for our sake. Even after you rinse out the box, harsh chemicals, especially bleach, leaves a strong smell behind that your kitten can easily smell and that will repulse her. Remember cats do everything by smell! So if the box smells all chemically, it won't be familiar to them.
Also, when you do catch your baby in the act, please don't yell at her. It will only frighten and confuse her. Remember, in her mind she is doing something perfectly normal and won't understand why she's being yelled at. Also she may start to think you are mad because she is relieving himself, not because she is in the wrong spot.
No matter what anybody says *never* rub a cat's or even a dog's nose in it. It's a very cruel thing to do and very counterproductive. Again she won't understand why she's being punished and she will start to think doing her business is a "bad" thing and she will start looking for places to hide so she can "go" without you being around. (I'm sure you yourself have never done this, I'm just trying to explain why it's not a good idea, because some people just don't understand what they are doing when they give out this kind of advice).
When you do catch her getting ready or even in the act, just quickly pick her up and bring her to her litter box. Again, don't scold her if she misses, you don't want her to start thinking that you are mad because she is doing her business. Place her in the litter box and explain to her that this is where she is supposed to do her business. If she then pees, praise her and even maybe offer her a treat. If she was already peeing when this happens, just bring her to the litter box anyways. In time she will start to realize that this is where she is supposed to be doing her business.
It might take a bit of time, but she will learn