Help!

So... I really like this girl. She is giving me mixed signals. She is so sweet and pretty and I wish we could be together. Yesterday she mentioned that she wanted to see a movie, so today I asked her is she wanted to go to the movies on Thursday. She said she doesn’t know because she does not have any money of her own right now. I really like her and I don’t know what to do. Why would she mention wanting to see the movie to only me if she did not want me to ask her, Please help.. I really like her and I don’t know what to do.