How to Prepare for Your Daughter’s First Period (With Advice From a Pediatrician)

With three girls in my house (two tweens and one teenager), puberty and period talk is basically a daily topic around here. And even though we had talked about it for years, the months of anticipation leading up to my oldest daughter's first period were still full of anxiety. Hers and mine.

And of course, it showed up on a swim practice day. My competitive swimmer had to get in the pool the very first day she ever had a period, which meant figuring out a tampon for the first time, on a deadline. Talk about diving into the deep end.

But she did it. She came out of that bathroom, let out the biggest sigh of relief, and told me, "That wasn't so bad!"

If you dread puberty talks or just aren't sure what to say or when to say it, this post is for you. I'm sharing exactly what worked in our house, plus answers to the big questions from my friend Dr. Lisa Klein, a pediatrician and co-founder of Turning Teen.

This post contains affiliate links. If you click and make a purchase, I may earn a small commission at no additional cost to you. This helps me continue sharing helpful parenting tips with you! This post also features products from my partnership with Bleuet. All opinions are my own.

5 Ways to Prepare for Your Daughter's First Period

From the very first talk to the actual day, here's how you can help your daughter feel ready.

• Start the conversation early. Kids are curious and it's best for them to learn from you. Start with simple, factual explanations and then expand on the details as they get older. Building that trust over time is key to them coming to you about other tricky topics, too.

• Keep talking about it. One big talk isn't going to be enough. We spent years getting ready for my daughter's first period. And we talked through all of it: what would happen, how her body would change, how she might feel, and (believe me) how big the emotions can get.

• Do a practice run. Before her first period ever showed up, my daughter practiced putting a pad on a pair of underwear at home. It sounds small, but it meant that when the real day came, the how-to part wasn't new, scary, or overwhelming. One less thing to figure out in a school bathroom.

• Build a period kit she can keep in her backpack. Leaks are common, especially in the beginning. It can take a while for periods to regulate and for tweens and teens to become familiar with their cycle. A period kit is a lifesaver, especially in those early, uncertain stages.

• Help her know what's normal before it happens. The more she knows, the less scared she'll be about her body changing. Knowing what to expect helps kids feel safe and confident. It also means she might pay closer attention to what isn't normal and may need medical attention, like super heavy bleeding or disruptive pain.

How to Talk to Your Daughter About Her Period (Hint: Start Early)

We are a very open house when it comes to puberty and bodies. With three girls, it comes naturally. My husband happily leaves this department to me, and at this point I'm pretty sure my girls bring up period talk at dinner just to watch him squirm.

What's worked for us is giving small, age-appropriate pieces of information over many years instead of one big, awkward "talk." The more you talk about it, the more comfortable you'll both feel.

Here's roughly how it's looked in our house.

Ages 5 to 6 (Kindergarten & First Grade): What a Period Is

By kindergarten or first grade, all of my girls could tell me what a period was. We kept it simple and used real words for body parts and to describe what happens. This way there's no shame around it.

Example: A girl's body has eggs, and once she's older, her body gets ready each month in case one becomes a baby. When it doesn't, that's what comes out during a period. Totally normal, totally healthy.

Ages 7 to 9 (Second & Third Grade): Where Babies Come From

Around second and third grade, the questions started, mostly thanks to playground talk. My answer was honest and simple: Sex is how you make a baby. When an egg is fertilized, it can become a baby.

Example: My favorite comparison? Chicken eggs. The eggs we eat for breakfast are unfertilized, and baby chicks come from fertilized eggs. It clicks instantly for little kids, and it takes the weirdness right out of the conversation.

Ages 9 to 10 (Fourth & Fifth Grade): Answer What They Ask

My youngest is in fourth grade. She knows sex is how babies are made, but she doesn't know the details of the act, and that's okay. She'll get more information when she's ready for it. Answer the question she's actually asking, not the one you're afraid of.

The bottom line: Start early, use real words, and give age-appropriate answers. When the period conversation has been happening for years, the first period feels like a next step, not a shock.

Be Ready to Say It More Than Once

Fair warning: one conversation is rarely enough. My middle daughter was so horrified when she learned what sex actually involved that we ended up having the conversation three times. I'm convinced she blacked out each time. Every time she brought it up, she'd react like it was brand-new, horrifying information.

And that's okay! Kids absorb this stuff in pieces, especially when it feels big or "gross." Repeating it calmly, without making it a big deal, is part of the process. The same goes for periods: expect to explain things more than once, and let each conversation feel a little more normal than the last.

Puberty Books We Love

Hearing about your changing body from your mom can feel like a lot. Sometimes a book does the talking for you. She can read it privately, at her own pace, and come back with questions when she's ready. These two have been hits in our house and with all my mom friends.

• Celebrate Your Body 2: The Ultimate Puberty Book for Preteen and Teen Girls: My friend Dr. Lisa Klein wrote this one with fellow pediatrician Dr. Carrie Leff. It's accurate, easy to read, and covers everything from bras to periods to big feelings.

• The Care and Keeping of You: Most moms I know have this book on their shelf. It's simple, it's illustrated, and it's a great first puberty book for younger girls.

Mom tip: Read it before you hand it over so you know what she's reading. Then just leave it in her room and let her come to you.

Her First Bra: The Puberty Milestone That Usually Comes First

Breast development is usually one of the very first signs of puberty, often showing up two years or more before her first period. So if you're starting to think about periods, there's a good chance a first bra is already on your radar (or should be!).

Signs she might be ready:

• Breast buds are developing. Small, sometimes tender bumps under the nipple are often the very first change.

• Her nipples show through her shirt. Even if she's still pretty flat, a little coverage can make a big difference in how comfortable she feels at school.

• She's asking for one. Maybe her friends are wearing them, or she just wants to feel more covered under a T-shirt.

• She's self-conscious in certain clothes. Gym class or thin shirts can make a bra feel like a confidence boost.

There's no "right" age. Some girls are ready at 8 and others at 13, and both are totally normal.

Why My Girls Love Bleuet

Your daughter doesn't have to "look like she needs a bra" to need one. One of my girls was still pretty flat, but her headlights were definitely showing through her shirts. I didn't want her to feel uncomfortable or self-conscious at school or out in public, so we got her a first bra. It wasn't about support yet. It was about helping her feel covered and confident.

That's exactly where Bleuet shines. Their first bras are soft, comfortable, and made for girls who are just getting started, so wearing one doesn't feel like a big, uncomfortable leap.

• Bleum Bra: This is the one I'd start with. It's extra soft, double-lined for coverage, and reversible, so it's perfect for girls who aren't quite sure they "need" a bra yet.

• Lotus Sports Bra: My girls wear this one for sports and active days, when they need a little more hold without anything digging in.

• Chloe Seamless Modal Bikini Brief: Soft, smooth, and invisible under leggings, these are what my girls actually want to wear every day.

• No-Stink Crew Socks: Puberty brings more than just periods. These socks are a lifesaver for sweaty, sporty tweens.

What to Put in a First Period Kit

• Pads: Go with thin, teen-sized pads with wings. They're made for smaller bodies and lighter flows, and the wings help prevent leaks.

• Liners: These are great for light spotting in the days before her period really starts, or for discharge, which is one of the early signs it's coming.

• Tampons: Choose the lowest absorbency she needs, usually light or slim for beginners.

• Extra Underwear: Pack a dark-colored pair so a leak isn't a whole-day disaster.

• Ziploc Bag: This is for underwear that has blood on it. You can buy opaque Ziploc bags so that the contents are not visible.

• Ibuprofen: Check your school's medication policy first. Many schools don't allow students to carry medicine, even over-the-counter, so you may need to leave it with the nurse.

• Heat Patches: Stick-on heat patches are a lifesaver for cramps at school. Follow the package directions on where to place them.

• Wipes: Look for unscented, gentle baby wipes or cleansing wipes that are easy to toss in a pouch.

• A Sweet Note From You: Tuck a little note into her kit for the day she finds it. It can be sweet, but funny might be even better, because a laugh is the best way to break the tension in a school bathroom. Need ideas? My Lunch Notes for Kids post has 75+ funny, cute, and encouraging ideas.

Keep at Home: Period Underwear: This won't go in the travel period kit, but it's worthwhile to keep on hand, especially for bedtime.

What Should Boys Know About Periods?

Boys should know that periods are a normal, healthy part of growing up, not something gross, funny, or embarrassing. This is especially important if they have sisters. They may have questions and it can help to prepare them so they feel comfortable talking about it too, or being a source of support to a friend or sibling if needed.

Here's what I'd want every boy to know:

• Periods are normal. About half the people he knows will have one someday, including his friends, his classmates, and maybe his sister or mom.

• Never tease or joke about it. No comments, no memes, and no pointing out a pad that fell out of a backpack.

• Respect privacy at home. If he has sisters, period products in the bathroom or a sister who isn't feeling great are just part of life. No big reactions needed.

If He Notices Blood on a Girl's Pants, Shorts, or Skirt

This is one of the kindest things a boy can learn to do. Accidents happen to almost everyone, especially when periods are new and unpredictable. If he notices a stain:

1. Tell her quietly and privately. Never in front of others, and never loud enough for anyone else to hear.

2. Keep it simple. Something like, "Hey, I think you might have a little something on the back of your pants."

3. Offer his sweatshirt or jacket. She can tie it around her waist and head to the bathroom or nurse's office without anyone else noticing.

4. Keep it to himself. No telling friends afterward. Being discreet is what makes it kind.

That small moment can turn one of the most embarrassing days of her year into one where she felt taken care of.

FAQ: Period Talk With Dr. Lisa Klein

My friend Dr. Lisa Klein co-founded Turning Teen to help parents, tweens, and teens navigate tricky topics like puberty, periods, and more. Here are her answers to the questions she gets asked the most.

When do most girls get their first period, and what's the normal age range?

A large U.S. study in 2024 found that the average age of a first period has fallen to 11.9 years. However, girls can get their periods anywhere between ages 10 and 16!

What are the signs her first period is coming soon?

I like to say that getting your period is the grand finale of puberty, so there are usually lots of clues that it's on the way! Before her first period, a girl will typically have developed breast buds and pubic hair and gone through a significant growth spurt. In fact, peak growth usually happens about six months before the first period. So when those pants are suddenly getting really short AND you've noticed lots of other body changes, be ready!

Another helpful timeline: The first period typically arrives about two to two and a half years after breast development begins. Vaginal discharge is another common sign that a first period may be getting closer.

When should parents start talking about periods, and how?

Period talk doesn't need to be taboo or secretive. Just like we teach our kids about other bodily functions, like peeing and pooping, we can introduce the concept of menstruation before it happens. Does someone in the house have their period? Talk about it. Are you at Target with your kid and buying your monthly supply of period products? Explain what they are for.

How you address it also depends on your child's age (and this can be for girls AND boys!). Here are a few suggestions:

• Ages 4 to 6 (Keep It Simple & Factual): "When girls get older, a little bit of blood comes out of the vagina every few weeks. It's called a period, and it's a normal, healthy thing the body does."

• Ages 7 to 9 (Expand & Explain): "During puberty, the uterus starts building a soft lining made of blood each month to get ready for the possibility of a pregnancy. If there isn't a pregnancy, the body doesn't need that lining, so it comes out through the vagina as a period."

• Ages 10+ (Get Practical & More Detailed): "Let's talk about what having a period is actually like. It usually lasts several days, and there are different products you can use, like pads, tampons, and period underwear. We can figure out which ones you feel most comfortable with and make a plan for what to do if your period starts when you're at school or away from home."

No matter what their age is, the goal isn't one big "period talk." Start simple, answer their questions, and add more information as they grow or as they ask.

What should go in a first period kit for school?

A zippered pouch with a wipe, an extra pair of underwear, a pad, a tampon, and even a Ziploc bag for the used underwear.

Pads, period underwear, or tampons: What's best for a first period?

The vast majority of girls start with pads, and period underwear is another great, easy option. Both are simple to use and can help a girl get comfortable with having her period. I suggest checking them out and trying them on before the first period!

BUT if you're on a beach vacation, you're an athlete, or you just feel ready to try a tampon, go for it! There is no set age for tampon use. You just need to feel comfortable touching your body and inserting it, and be responsible enough to change it regularly. Check out my guide for teaching your daughter how to use a tampon.

The best first period product is the one that makes your daughter feel the most comfortable and confident.

Is it normal for periods to be irregular at first?

YES! It can take about two years for periods to become regular.

But "regular" doesn't mean getting your period on the exact same date every month! A menstrual cycle is counted from the first day of one period to the first day of the next. A cycle can range from about 21 to 45 days and still be considered normal.

What are normal symptoms for a tween's or teen's period?

Periods can come with no symptoms other than the expected vaginal bleeding, or a whole variety of other things! Mild cramping (pain in the lower belly, below the belly button), bloating (feeling a little puffy or swollen, or like your pants are temporarily fitting a bit tighter), breast tenderness, and mood changes are all common. Every body is different! The important thing to remember is that these symptoms should be manageable, and there are ways to help relieve them so they don't interfere significantly with everyday life.

What would be some abnormal period symptoms to look out for?

Periods shouldn't be so painful or heavy that they interfere with everyday life! If someone is regularly missing school or activities because of cramps, soaking through a pad or tampon every hour for several hours, bleeding longer than seven days, frequently passing clots of blood, or going more than 90 days without a period, it's time to check in with her pediatrician.

What should I do if my daughter doesn't want to talk about her period?

Some kids are naturally more private or embarrassed about their changing bodies, and that's OK. Keep conversations casual, maybe while driving in the car or shopping for period products, rather than sitting down for a big, serious TALK. Leave a book about puberty in her room, offer to answer questions by exchanging a special notebook back and forth, or let her know she can talk to another trusted adult (a favorite aunt, grandma, or her doctor!). The most important thing is that she knows you're available, and judgment-free, whenever she's ready.

How can she manage cramps?

Period cramps are common, but that doesn't mean girls just have to suffer through them! A heating pad, gentle exercise, and good hydration can all help.

For pain relief, I generally recommend ibuprofen (unless there is a specific reason why she can't take it). It works best when taken at the first sign of cramps or bleeding, rather than waiting until the pain is severe (it's all about stopping something called prostaglandins!). Follow the dosing instructions for your child's age and weight or ask your pediatrician for guidance.

If cramps are regularly causing someone to miss school, sports, or other activities, talk to their doctor. Severe period pain should not simply be "part of being a girl."

When should my daughter have her first gynecologist visit, and can her pediatrician handle period concerns until then?

Your pediatrician can absolutely handle most period concerns! Getting a first period does not automatically mean a girl needs to see a gynecologist or have a pelvic exam. A routine Pap smear isn't recommended until age 21 for most patients (of course, this depends on the medical history of the patient).

If something comes up that needs more specialized care, your pediatrician can help determine when it's time to see a gynecologist.

What actually happens at that first visit with a gynecologist, and how can I help her feel less nervous?

First of all, let's normalize the nerves! I think most of us who have been to the gynecologist still get a little nervous.

My gynecologist friends always remind me to tell my patients why they like to establish care with teens: to just talk! The first visit is usually about getting comfortable, asking questions, discussing periods and reproductive health, and establishing a relationship for the future. The American College of Obstetricians and Gynecologists emphasizes that an internal pelvic exam is usually not needed at that first visit unless there is a specific medical reason for one.

Unless one of my patients needs to see a gynecologist sooner for a specific concern, I typically recommend establishing care around age 18. Knowing ahead of time that the first visit is mostly a conversation can make it feel a lot less scary!

How can dads help with their daughter's first period?

Dads can help by making periods no big deal! Don't act embarrassed or like periods are something only moms can talk about. Learn the basics, be willing to buy period products (yes, even standing in that aisle at Target!), and make sure your daughter knows she can come to you if she needs help.

What should parents know when talking to their kids about periods?

You don't have to be a period expert. You just need to be comfortable enough so your daughter knows her body is never something she needs to be embarrassed to talk about with you.

You've Got This 💗

If your daughter's first period feels like a big, scary unknown right now, I promise it gets easier. Start early, keep talking, pack the kit, and let her know there's no question she can't bring to you. One day she'll walk out of that bathroom, take a deep breath, and tell you, "That wasn't so bad." And you'll both realize you were ready all along.

More for Moms of Tweens

• 13 Things I Want My Daughter to Know Before Middle School: The big-sister advice I wish someone had given me.

• Tween Gift Ideas: Mom and kid-approved gifts for ages 9 to 12 that won't end up forgotten in a closet.

• Gift Ideas for 13-Year-Old Girls: What my teen actually loved (and used!).

• Gifts for Teens: Gift ideas for the teens who already have everything.

• Time Management for Middle Schoolers: The 15-minute Sunday session that actually works.

• The Best Book Series for Middle School Girls: Recommended by my 13-year-old.

• 30+ Best Movies for 10-Year-Old Girls: Coming-of-age favorites for your next cozy movie night (and a perfect period-day pick-me-up).