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A Beginner’s Guide to Periods

September 19, 2025

Whether you’re a total newbie to the period world or just want to be a better ally, welcome — you’re in the right place. This guide is all about making periods less confusing, less awkward and a whole lot less stigmatized. 

What Is a Period, Anyway?

A period (aka menstruation) is when the body sheds the uterine lining. It usually happens about once a month, lasting 3–7 days and is a totally normal part of the phases of your period. Cycles can range from 21–35 days, and every person’s flow, timing and symptoms can look a little bit different.

Quick Science Breakdown:

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Period Terminology 101

Here’s a quick glossary to help you understand the lingo:

  • Cycle: The full month‑long hormonal pattern, usually 21–35 days.
  • Flow: How much blood comes out. It can be light, medium or heavy.
  • PMS: Premenstrual Syndrome — mood swings, cramps and bloating before a period.
  • Spotting: A little bleeding between periods. Totally normal!
  • Pads/Tampons/Cups/Period Underwear: Different period products to catch the blood.

Myths & Misconceptions (Busted!)

  • MYTH: You can’t swim on your period.
    TRUTH: You totally can — just wear a tampon, cup or period swimsuit.
  • MYTH: Tampons can get lost inside you.
    TRUTH: Nope, your cervix keeps them from going anywhere.
  • MYTH: Talking about periods is “gross.”
    TRUTH: Periods are normal, healthy and nothing to be ashamed of!

Period Products: The Options

There’s no one‑size‑fits‑all solution when it comes to period care. Here’s a quick rundown of the different types of products out there:

  • Pads: External, easy to use and great for beginners.
  • Tampons: Internal, discreet and come in different absorbencies.
  • Menstrual Cups/Discs: Reusable, eco‑friendly and can last up to 12 hours.
  • Period Underwear: Absorbent, comfy and a solid backup option.
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When to See a Doctor

Some things aren’t “just part of having a period.” Seek medical advice if:

  • Your period is so painful that you can’t function.
  • You bleed for more than 7 days or need to change a pad/tampon every hour.
  • You frequently miss school/work because of your period.

Supporting Someone on Their Period

Even if you don’t menstruate, you can be a great ally by:

  • Advocating for policy changes that promote access to period products.
  • Keeping extra pads or tampons on hand.
  • Offering to grab snacks, heating pads or pain relief.
  • Avoiding jokes or dismissing their symptoms — validation goes a long way.

At Aunt Flow, we’re here to make periods a little more manageable with accessible, sustainable products for everyone who menstruates. 🧡

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Learn More About Aunt Flow
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Our Story

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Advocate at Your School

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Advocate at Your Business

Stay in the flow — we’ll send you period positivity + timely updates on the menstrual movement.

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claire coder,
founder + ceo

Hi! I’m Claire. I founded Aunt Flow after getting my period in public without the supplies needed.

At 18 years old, I dedicated my life to developing a solution to ensure businesses and schools could sustainably provide quality period products, for free, in bathrooms. Our products are made with organic cotton and we are constantly working to reduce our environmental impact! Since 2021, we've donated MILLIONS of period products to menstruators in need. I call this people helping people. PERIOD.®

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