Potty Training Update

I have had a very stubborn 3 year old up who has basically refused to potty train. I think she is using this as a test that her will is stronger than mine. Which it is for the most part. For instance, when I am staring at a potty at the ballpark and she is saying she has to go, I then change to "Why don't you just go in the pull-up? It's really dirty in here." So now I have totally confused the poor child. Well, time is up. The deadline is here. In order for her to begin preschool in a few short weeks, she has to be trained. Talk about some pressure. So all that to say, I told her last week when the pull-ups were out, we weren't buying anymore. And the last THREE days now, she has gone totally accident free! Go figure! I had previously tried the "potty party", buying trinkets and toys, M & Ms, charts and stickers, buying new character panties, any kind of little treat I could. And all it really took is me saying "I'm not buying anymore pull-ups"?? Sometimes we just make everything more complicated than it should be.