C. G.,
Do you sit her on the potty for longer than 30 seconds? Does she wear pull-ups? Remember, pull-ups have the same feel as a diaper so it will probably take her longer. I bought my kids panties/underwear and those plastic things that go over the underwear when I did my training. They would peepee in their undies and have the nerve to tell me that they were wet. So I told them, if they could tell me when they were wet, they could tell me they had to go to the potty. Most of the time they would forget or just wasn't quite sure when it was time to go to the potty, because they were so use to doing it in the diaper. So I would ask them about every 10 minutes until I got on their nerves and finally, they got the message. Even when they said "no", I would sit them on the potty anyway. I would tell them to just try. It's gonna take some time, but 3 years old, I feel, is just ridiculous. Especially, if you're at home all day with her, that's more than enough time. She should've been potty trained at 2, or even 1 1/2. I'm a single working mom with three kids and my youngest daughter and son were both potty trained at 2. My oldest would go to peepee in the potty, but not poopoo. So, I would have to put a diaper on her just so she would poopoo and she would go and hide to do that. But I guarantee, she was fully trained by 2 1/2. Diapers were expensive then and still are. To me that's a waste of money, especially if the child understands well and can verbally articulate to you. Just try sitting her on the potty every couple hours for about 1 or 1 1/2 minutes. But always ask her if she has to and if she says no, put her on it anyway. Also, you can show her by letting her see you. That is another thing I did. Put her pot right beside yours or in front and when you go, have her go, too.