My almost 3 year old started the potty today. She has been sitting on it occasionally (before bathtime, after I go sometimes) for a few months. We decided to get some big kid undies and move a little potty downstairs today and spend the whole day naked or in undies near the potty. She peed in her undies almost right away, no big deal. I reminded her that pee goes in the potty and changed her into some clean undies. Then she pooped into her undies. This is more worrying because she KNOWS when she is pooping. I could see that she was about to go and asked her if she wanted to go on the potty. She said, 'No, I don't want to'. Then pooped into her undies and told me about it.
The thing is she is very willful. I'm afraid the more I encourage her to sit the more she will say no but I don't know how to get her to go on the potty without prompting her to sit when I think she needs to go. She's very verbal so I asked if she wants to use her diaper and she says no. She clearly wants to be a big kid and wear big kid undies but she doesn't want to sit when she is going to pee/poop.
When I read books or ask for advice other Mamas (including my mother) just tell me to explain to her how the potty works and encourage her to use it. She understands, I can tell and she can tell me, she just doesn't want to do it. Any advice?