see if her daycare has a potty schedule and see how well that works if you take her potty about the same time that they take her potty at daycare. Start logging the time she has accidents and take her potty at that time. If you have her on a regular eating schedule you may be able to pick up on what time she goes potty everyday and get her to the potty before she has an accident. Sometimes it's just timing. Get rid of the pull ups and diapers, they just prolong the process as they feel the difference and know it's ok to pee in diaper like items where regular panties will be uncomfortable when wet.
Potty training is one of those hard to figure out issues. Every child is different and seem to accomplish the task differently.
My first child we started right before he was 2, he did really well for a while then went backwards and was a few weeks before he was 3 when he was totally potty trained and didn't have bed accidents either. We didn't use pullups at night time, I usually got him up to go potty right before I went to bed and usually made it through the night dry. He did have a few wet beds the first week but think him having to stand there very sleepy while I cleaned up the bed mess was probably what helped because he would be so sleepy and want to crawl back in bed but he had to wait until I stripped the bedding and put it in the washer, cleaned the mattress cover with lysol kitchen antibacterial cleaner, and changed the sheets. I don't know if that long process helped or not but he was totally potty trained and not just daytime trained.
2nd child was 2 1/2 when we started potty training her. She was potty trained within a month and wasn't a bed wetter either.
3rd child was a little over 3 but we had a lot going on at the time with moving, dad retiring from the military, living with family members for a few months, and a lot of changes so it took longer with him but once we set our mind to it and made up our minds that was the week for potty training and we stuck with it consistantly and he was fully trained that week.
We only used pullups when we were out shopping or at church but didn't really use them at all until they were getting the concept pretty well. We used underwear once we came to that time of getting serious and deciding "this is the week to be done with diapers." The thick underwear with the plastic liners built in work great. We had 6 pair of them and every day when they would have an accident I would just put the underwear in the washer and at the end of the day would start the washer and wash the clothes that got wet throughout the day. Most of the time the outfit didn't get wet just the underwear. You can get the plastic lined underwear at Walmart, Target, or other clothing stores. They come in 2 or 3 pair per pack and think they were Gerber brand. once they got the hang of staying dry then we would go to the regular thick underwear without the plastic, but I always used the plastic lined ones for bedtime just in case.
Be patient and consistant. Going back and forth from panties to pull ups just confuses them and prolongs the process.
Hope something works for you soon and she is potty trained soon.