Potty trained 2 1/2 yr old starting school

So my 2 1/2 year old daughter is 100% potty trained.

She starts headstart on Monday. They require the kids to be 100% potty trained. ( which she is )

But sometimes when she’s having too much fun she won’t say she has to go potty. I’m not sure how she’s going to do since I’m the one she usually tells she has to use the bathroom to. She also sometimes has a hard time pulling up and down her pants.

Does anyone have a similar experience? How did your little one do being potty trained in preschool / headstart ?