Period at school

Allie • Hi, im 12yrs old and im in 7th grade.
Okay so I'm 12yrs and have had my period for 1 year now, I'm going into middle school for the first time. But what scares me is if people will find out that I'm on my period, cause in elementary it was much easier to hide it from people but now that I'm into middle school with way lot more kids what do I do!??!?!