If you’re starting your periods for the first time, it can bring up lots of questions. You can get the information and advice you need to understand what’s happening and what to do if you’re worried from Childline.
The NHS Website has lots of information on all aspects of periods.
The Scottish government have a great resource on what if I get my period on holiday?
You can also find local support from your local Health Visiting (formerly called School Nursing) service.