The smaller the better! Try to pick a bag that’s about twice the size of your phone. Avoid clear bags so people can’t see what’s inside them. Check the makeup section of your local grocery store or home goods store to find the perfect bag.

If you’ve never used a pad before, don’t worry. It’s easy! Remove the plastic wrapper and protective paper strip from the back, and place the sticky side on the inside of your underwear. If the pad has wings, remove the paper strips from the adhesive and fold them out and around your underwear to keep the pad in place. Never flush a pad or pantyliner down the toilet. When you’re done with the pad, fold it up to throw it in the trash.

Tampons aren’t a great choice for your first period since you don’t know how heavy your flow will be and you’ve never inserted a tampon before. You might want to stick with pads, but it’s up to you! Wrap used tampons in toilet paper and put them in the trash. Don’t flush them!

Choose a comfortable pair of undies that you can wear with a pad. Pick dark underwear since your period may stain light fabrics. If you do get blood on your underwear, it’s no biggie! Just take them home and put them in the wash as soon as you can.

You can also use a sugary treat to boost your mood if you’re feeling lethargic.

Baby wipes are a great option, and they often come in travel-sized packs.

Some schools don’t allow students to carry medication. If you’re not sure, check your school’s policy before packing any medicine.

If you don’t want to include liquid hand sanitizer, look for sanitizing wipes in the supermarket. With wipes, there’s no risk for a leak or spill!

If carrying a pocket calendar is too old-school, download a period tracker app, like Clue, Flo, or Ovia. Keep in mind that it can take a few months for your period to become regular. Be patient and try not to worry! If you notice that you don’t get a monthly period or have your period for more than 7 days at a time after the first 5 to 6 months, talk to your doctor about possible causes for this.