The Menstrual Cycle  

The menstrual cycle is a natural and powerful part of many people’s lives. It is your body’s way of preparing for the possibility of pregnancy—and it is nothing to be ashamed of.

Learning how it works helps you understand your health, your emotions, and your body better.

The Menstrual Cycle, Unboxed:

Getting Real About Menstrual Health

Not everyone who menstruates identifies as a woman. No matter your gender identity, you deserve care that respects and reflects who you are.

A blue medical cross with a white snake symbol inside, next to a pair of blue hands holding a blue heart.

Phases of the Menstrual Cycle

Three blue sparkling stars outlined with bold lines.
Diagram illustrating the menstrual cycle phases with four color-coded sections: Menstrual Phase in red, Follicular Phase in green, Ovulation in orange, and Luteal Phase in blue. Each section includes details about day range, duration, and purpose of the phase.
Illustration of three blue sparkles with lines forming diamond-shaped points.

Phases Broken Down

Three blue, stylized sparkling stars on a black background.
Three blue sparkling star doodles with a handwritten style on a transparent background.
Colorful infographic explaining the four main phases of the menstrual cycle: Menstrual Phase, Follicular Phase, Luteal Phase, and Ovulation, with descriptions of what happens and signs to notice in each phase.
Blue and white warning triangle with an exclamation mark inside.

Disclaimer: Ovulation can be tricky to track—especially during early adolescence.

Periods often fluctuate due to stress, changes in routine, or natural hormonal shifts. Everyone’s cycle is different, and that is completely normal.

Want to learn more about ovulation? Click here

What is Normal?

Everyone’s cycle is different—and that is normal.

A typical menstrual cycle is 21 to 35 days long, and bleeding usually lasts 2 to 7 days. For some, periods are predictable. For others, they vary each month.

If something feels off, trust your instincts.

You deserve to feel confident in your body.

Do not hesitate to talk to a healthcare provider or OB/GYN if you notice changes or have questions.

A blue sticky note pinned with a yellow thumbtack.

It is also common for periods to be irregular during adolescence—especially in the first few years after menstruation begins.

Irregular Periods

Irregular cycles might mean:

  • Skipping a period

  • Having periods too often or far apart

  • Heavier or lighter bleeding than usual

A girl with long brown hair wearing a white dress with red paint splashes stands in front of large green leaves and small red flowers.

This can happen for many reasons, including:

  • Stress

  • Changes in weight or exercise

  • Birth control use

  • Health conditions like PCOS or thyroid issues

A person standing in casual attire, wearing a hoodie, shorts, and flip-flops, surrounded by large green leaves and small red flowers in a graphic illustration style.

If your cycle is changing a lot or affecting your daily life, it is okay to talk to a healthcare provider. You are not being dramatic—it is your body, and you deserve answers.

Illustration of a plant with large green leaves, smaller green leaves and red flowers growing from the center.

When to Seek Help

It is always okay to ask questions about your cycle.

You might want to reach out to a provider if:

  • Period pain regularly interferes with your everyday life

  • Bleeding lasts over 7 days

  • No period for 3+ months

  • Bleeding between periods/after sex

  • Worried or confused about body

A cartoon illustration of a smiling female reproductive system with a face, surrounded by question marks, on a black background.

You deserve care that listens to your concerns and helps you feel more in control.

There is no one-size-fits-all when it comes to period care. Whether you're new to menstruation or just looking to try something new, this guide can help you figure out which product might match your lifestyle, comfort, and needs.

Let’s break it down:

Which Menstrual Product Is Right for You?

  • A cartoon illustration of a purple sanitary pad with wings.

    Pads

    Best for: Beginners, light to heavy flow, people who prefer not to insert anything
    Pros: Easy to use, come in many sizes and absorbencies, no risk of TSS
    Consider: Can feel bulky or less discreet; needs to be changed every 4–6 hours
    Reusable option: Cloth pads!

  • Two pink cylindrical objects with purple bands, possibly candles, placed on a pink surface.

    Tampons

    Best for: Swimming, sports, active days
    Pros: Invisible under clothes, gives more freedom of movement
    Consider: Needs to be changed every 4–8 hours, small risk of TSS (Toxic Shock Syndrome)
    Tip: Start with a light or regular absorbency if you’re new!

  • A digital illustration of purple women's underwear with darker purple accents.

    Period Underwear

    Best for: Comfortable, eco-friendly, and low-maintenance days
    Pros: Feels like regular underwear, reusable, great for overnight or backup
    Consider: Needs to be washed properly; may need more than one pair per cycle depending on cycle length

  • Illustration of a purple tornado vortex or funnel.

    Menstrual Cup or Disc

    Best for: People who want to save money and reduce waste
    Pros: Can be worn up to 12 hours, can sleep with it in, reusable for years if stored correctly, holds more than tampons
    Consider: Takes practice to insert/remove, may not be for everyone

Find Your Flow Fit

Which period product fits your life best?

This little game is just for fun! It can help you explore different period products based on your comfort, lifestyle, and preferences. You do not have to use what your result says — but if it matches what you already use or want to try, that’s awesome!

Everyone's body and period experience is different, and there is no right or wrong way to manage your flow. Whether you are new to periods or just want to learn more, this can be a helpful place to start.

Now… let’s find your Flow Fit!

A flowchart titled 'Find Your Flow Fit!' that helps users select period underwear based on preferences. It guides answering questions about comfort, sustainability, ease of use, and style, leading to four recommended options: Comfy Champ, On-the-Go Flow, Eco Flow, and Minimalist Flow, each with descriptions and best matches.

Birth Control and Your Period

Birth control can change your cycle—and that is expected!

A cartoon style illustration of a pink nail file, a pink and gray bottle of nail polish, a nail art sponge with holes, and a small container of cream.

Everyone’s body reacts differently, so your experience might not be the same as someone else’s. Some people have lighter periods, some stop getting them altogether, and some notice changes like spotting.

These changes are usually normal and nothing to worry about—but if something does not feel right, contact a medical provider you trust.

If you want to learn about different birth control methods, click here.

The Pill, Patch, or Ring

These methods use hormones to prevent pregnancy.

You might:

  • Bleed less or skip your period (especially if you take it continuously)

  • Have more regular cycles

  • Notice spotting between cycles (especially at first)

Here is a general idea of what you might notice with different methods:

A pink and purple color-coded weekly pill organizer with a circular design. The days of the week are marked around the inner ring, with instructions to use a coin to open the compartments. An arrow points to a specific day, Thursday, indicating where to access the medication.

The Shot (Depo-Provera)

A shot you get every 3 months.

You might:

  • Stop getting your period after a few months

  • Have irregular bleeding at first

  • Bleed more or less than usual

Drawing of a syringe and a small vial of liquid medication or vaccine.

Hormonal IUD (like Mirena or Liletta)

Placed in the uterus and lasts several years.

You might:

  • Have lighter periods or no period at all over time

  • Spot irregularly at first

  • Feel cramping or notice changes as your body adjusts

An illustration of a hand-held electric fly swatter with a blue handle and a white grid-like surface for zapping insects.

Non-Hormonal IUD (Paragard)

This one has no hormones—just copper.

You might:

  • Still get your period monthly

  • Have heavier bleeding or more cramping at first

  • Adjust after a few months

Illustration of a Taser stun gun with a blue handle and a trigger.

The Implant (Nexplanon)

A small rod placed under your skin.

You might:

  • Bleed less, more, or not at all

  • Notice spotting, especially in the first 6–12 months

  • Have unpredictable periods

Illustration of a person flexing their arm, showing their bicep muscle, with the other hand grasping the upper arm