That's why we're here with advice on everything about first periods and puberty.

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It may feel like you’re developing much faster than your friends are. You’re not alone.

__A changing mood__ is a common premenstrual syndrome symptom. The hormones in your body can affect your mood and your patience for things that wouldn’t normally get under your skin.

You may feel extra sensitive before your period arrives. It can feel like your emotions are going haywire and that you feel like crying at the drop of a hat.

Before getting alarmed, check the calendar. Are you about to get your period? If so, you know to take a deep breath, keep calm, and not get too flustered by how you’re feeling.

Sometimes some strategically planned alone time is also just what you need.


4 Mood changes

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The ﬁrst signs of puberty

- Starting to develop breasts
- Getting taller
- Becoming curvier
- Getting spots / greasy hair


- Experiencing mood swings
- Discharge in her underwear
- Growing pubic hair

A006 PMS Symptoms Before Your Period

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The average female loses between 4 and 12 teaspoons of menstrual ﬂuid during her period, but only a small amount of that is blood.

Since her body contains over four litres of blood, explain that it doesn’t miss the little bit lost during a period and replenishes it quickly.

It leaves her body over three to seven days, so only a bit comes out at a time.

The average female loses between...

A017 What Does Your First Period Look Like?

A118 Her Puberty & Period FAQs

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A065 What is PMS (Premenstrual Syndrome)?

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You might also want to start wearing an [Always Dailies](/en-gb/feminine-products/panty-liners/) pantyliner in the run up to your period so you don’t get caught off guard when it arrives.

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A033 How Often Is a Period?

2 What is vaginal discharge?

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Don’t Be Worried about Your First Gynaecological Examination

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Fixed Vs. Growth Mindset

Changes during puberty happen to every girl! Here’s everything a girl can expect, from milestone to milestone.

A076 Changes During Puberty in Girls

Changes During Puberty in Girls

6 Why should I care when my next period will be?

7 Do tampons hurt?

How do I know when my next period is due?

2 How do I know when my next period is due?

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A035 Your Menstrual Cycle Phases

As soon as you notice the ﬁrst signs of puberty, start having regular talks to help your daughter understand the changes she’s experiencing & how to cope.

If you’ve noticed signs of vaginal discharge in her underwear, reassure her that it’s completely normal. Talk to her about using [pantyliners](/en-gb/feminine-products/panty-liners/), which can help her feel fresh all day long. This is also the perfect time to explain periods to a child.

As soon as you notice..

While puberty is often an exciting time, it can be difﬁcult to know what to do when your daughter gets her period early or late. Click here for our tips!

A124 What To Do When Your Daughter Gets Her Period Early Or Late?

What To Do When Your Daughter Gets Her Period Early Or Late?

A072 When Does Puberty End for Girls

Help her prepare for it. Give her some period products that she can put in her schoolbag or locker and reassure her that if she does get caught off guard she can talk with a trusted adult or school nurse who should have period products available.

Worst case - she can make a makeshift pad out of toilet paper until she’s able to get a proper pad.

Help her prepare for it.

4 Share your experiences

Puberty is a time full of exciting changes.

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What Is a Sanitary Towel?

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In order to have happy and meaningful relationships we need to be able to recognise healthy and unhealthy behaviours.

A059 What is menstruation? 7 Period facts

Reassure your daughter that using a tampon will not hurt – nor will it mean that she’ll lose her virginity.

Tampons can be used safely by any girl on her period and are particularly useful for girls who like to hit the water during their period.

If she wants to try a tampon, applicator tampons can often be easier to insert. Talk to her about ﬁnding a comfy position – for example, standing with knees slightly bent.

Suggest she watches this video on [How to Insert a Tampon](https://www.youtube.com/watch?v=Tgld2kYm8tw).

Reassure your daughter...

1 Cramps

A044 Common Causes of Bleeding Between Periods

Puberty starts in the brain when the pituitary gland sends out a message to the ovaries to start producing estrogen, the female hormone. This ultimately means that girls start menstruating, aka getting their periods.

As part of what happens during puberty for girls, a host of physical changes happen to girls’ bodies that are intended to prepare the body for being fertile, such as growing wider hips, growing breasts, developing vaginal discharge, and growing underarm and pubic hair.

That’s what puberty is for girls. However, the hormones created during this process produce a lot of changes in your body, as well as your emotions.

So, there’s actually a lot more to it than that. Here’s a little more about what happens during puberty from an emotional perspective.

Puberty starts in the brain...

A007 When Is My Next Period Due?

Empower teens with knowledge early and you’ll help them grow into confident adults! Click here for expert parenting advice from Always!

Parents and Carers

1 What is puberty anyway

A048 How to Use Sanitary Pads

It’s important to be able to plan for your next period. Click here to learn how to work out your period cycle. It's super helpful!

A032 How Do You Work Out Your Period Cycle?

How Do You Work Out Your Period Cycle?

A070 First Period Stories

First Period Stories

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Every woman at some point in her life experiences crampy menstrual pains. And how to get reduce period pain and cramps? You can start with warm compresses!

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How to get reduce period pain and cramps

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Period Calculator

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All You Need to Know About Boobs!

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Knowing how to use a sanitary pad will give you confidence during your period while keeping your knickers clean. Learn how to do it from out guide! 

How to Use Sanitary Pads

Explain that there is no right time for her ﬁrst period to come and that every girl is different.

In general, girls can expect their ﬁrst period about two years after the ﬁrst signs of breasts developing, usually between the ages of 10 and 16. Many girls get their ﬁrst period a couple months after noticing vaginal discharge.

If she hasn’t started her period by 16, you might want to make an appointment with your GP.

Explain that there is no right...

3 Start conversations early

1 Open up an emotional dialogue

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1 Calculate your average menstrual cycle length

Calculate your average menstrual cycle length

At What Age Do Girls Get Their Period?

A125 Helping Your Daughter Through Puberty

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Ah, menstrual cramps. They’re no-one’s favourite. But understanding what causes menstrual cramps can take some of the edge off and make them not feel so bad. 

A014 What Causes Menstrual Cramps?

What Causes Menstrual Cramps?

Discovering a little blood on your knickers before your period is due can be confusing. But breathe deep. It’s usually no big deal. Click to learn more!

A012 Why Am I Bleeding Before My Period Is Due?

Why Am I Bleeding Before My Period Is Due?

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Girl's corner

Wanna be your most unstoppable self?

My period

PMS Symptoms Before Your Period

When Is My Next Period Due?

At What Age Do Girls Get Their Period?

My body

All About Early Puberty in Girls

When Does Puberty End for Girls

What Happens During Puberty?

My confidence

How to improve self confidence?

Fixed Vs. Growth Mindset

Healthy & unhealthy behaviours in teenage relationships

Girls Talk Videos

Parents and Carers

How To Explain Periods And Puberty To Your Daughter

Her Puberty & Period FAQs

How To Raise A Daughter: Guide For Dads