What happens if I get my period in school?

If you won't carry a purse or back pack or messenger bag or anything, try leaving the pads in your locker. Also, they make tampons now that are small enough to fit right into your pocket. You need to put one on in the morning, and then change it during the day once or twice. As for gymnastics, tampons don't "fall out." Just make sure you insert it properly. Ask the school nurse for some info if you are not comfy talking to your mom.