I think it's a good idea to check with her doctor, but is she mad about going in the car? Recently at daycare DD1 has been peeing on the floor, in the bathroom, when she is mad about something. I think it's a way for her to try to exert control when she's not getting her way, and she gets attention.
Assuming there's no underlying medical issue, my vote is get some pee pads and wait it out. DS2 had regressions now and then and they always passed fairly quickly.
This happened with my DS1. He was PT (with the exception of nighttime) by the time he turned 2. We had to set a timer and take him to the potty every 20 minutes. All day. Every day. He would go in the potty but we'd have to do a lot of encouraging. Then all of a sudden he started having accidents, it got worse, he wound refuse to go potty, etc. So we had to take a PT break and start up again a few months later. A few months turned into a lot longer than a few months and we actually just got DS1 successfully PT 2 months ago. He is now three. It was a long battle, but he just wasn't ready back then even though we thought he was. This time I just took his diaper off one morning and said, "No more diapers, buddy. Let's use the potty from now on." He jumped right on board and hasn't had one single accident... even at night.
All of that to say that maybe your DD just isn't ready. It happens, and the best we can do is take a break and try again. I'm sorry I don't have any other answers, but maybe this will help you in some small way. ((Hugs)) I know how frustrating it can be.
Could she have a uti or something along those lines? Any changes in her life? If no, then muster up as much patience as you can and roll with it. Try to avoid negative talk and encourage as much as possible. Maybe start a sticker chart...a sticker for each car ride dry and offer small rewards leading up to something bigger.
We went through this really bad with DS1 withholding stool to the point where we were facing medical interventions so he didnt get a blockage. It is super frustrating and so hard to remain encouraging but it is super important. Get her to take ownership...tell her its her job and only she can make it happen but you are there to help. Good luck and let me know if you need any help/support.
I vote UTI, especially with peeing at night if she hadn't been. A check up wouldn't hurt to rule that out. The "good" news is, UTI is very easy to treat.
Slightly related but @JA82406 IMO if you had to set a timer all the time for him to use the potty, and do lots of encouraging, that's not trained. The child should be willingly going on his own, and recognizing the urge to use the toilet without prompting from the parent. It sounds like your LO wasn't ready for training and resisted it after the initial newness wore off moreso than a regression.
She's ~3yrs, right? I think having her help clean it up would be appropriate.
Do you think it's intentional or is she just waiting too long and her body releases? Can you keep a log of when it happens to see if you can determine the pattern, record what's going on right before?
ETA - if you suspect it's attention seeking, I would say something simple like "opps, had an accident, let's clean up" and not make a big thing out of it at all. If she's been trained for a while and typically goes on her own, then she doesn't need reminding about going in the toilet, etc.
I know its super frustrating but try to avoid negative consequences. A simple "oops...help mommy clean this up" would be best without making a big deal out of it. Work really hard to praise and reward when she does go modes she respond to sticker charts? Try going back to that when she goes with smaller rewards leading up to a big one. If it seems to be when she's relaxing you could have her try to go before she does these things and remind her that its her job to use the potty. Good luck!
When DS2 had regressions at 3 years old, I threatened Pull-Ups any time he had an accident. He HATED going back to "diapers" and having to be treated like a baby. Not sure if that would work for you. I had to put him in Pull Ups a couple of times to let him know I meant it, and he stopped having accidents because he wanted to be a big boy.
It isn't really punishment, it's just a matter of fact consequence of not being able to hold it.
Re: STM PT question
Baby Girl #2 is on her way!
All of that to say that maybe your DD just isn't ready. It happens, and the best we can do is take a break and try again. I'm sorry I don't have any other answers, but maybe this will help you in some small way. ((Hugs)) I know how frustrating it can be.
We went through this really bad with DS1 withholding stool to the point where we were facing medical interventions so he didnt get a blockage. It is super frustrating and so hard to remain encouraging but it is super important. Get her to take ownership...tell her its her job and only she can make it happen but you are there to help. Good luck and let me know if you need any help/support.
Slightly related but @JA82406 IMO if you had to set a timer all the time for him to use the potty, and do lots of encouraging, that's not trained. The child should be willingly going on his own, and recognizing the urge to use the toilet without prompting from the parent. It sounds like your LO wasn't ready for training and resisted it after the initial newness wore off moreso than a regression.
Do you think it's intentional or is she just waiting too long and her body releases? Can you keep a log of when it happens to see if you can determine the pattern, record what's going on right before?
ETA - if you suspect it's attention seeking, I would say something simple like "opps, had an accident, let's clean up" and not make a big thing out of it at all. If she's been trained for a while and typically goes on her own, then she doesn't need reminding about going in the toilet, etc.
It isn't really punishment, it's just a matter of fact consequence of not being able to hold it.