Babybelletje: What This Sweet Pregnancy Tradition Really Means

Somewhere between the third trimester glow and the endless list of baby names, you might stumble on a small round pendant called a babybelletje. Maybe a friend wore one. Maybe it showed up in your feed, nestled between cottagecore nurseries and soft pastel baby blankets. Whatever brought you here, you are probably wondering the same thing everyone asks first.

What is a babybelletje, and why do so many expecting mothers wear one?

This guide walks through the full story. We will look at where the babybelletje comes from, what it is made of, what science actually says about the sound it makes, and how families use it before and after birth. No fluff, no sales pitch. Just the kind of honest answer you would get from a friend who already did the research for you.

What Is a Babybelletje?

A babybelletje is a long pendant necklace worn during pregnancy. The chain hangs low enough that the round pendant rests right against the baby bump.

Inside that little sphere sits a tiny bell mechanism. Every time the mother moves, walks, or shifts in her chair, the bell chimes softly. It is not loud. It is not electronic. It is a small, mechanical tinkle, closer to a wind chime than an alarm.

The word itself comes from Dutch. “Baby” needs no translation, and “belletje” is the diminutive of “bel,” the Dutch word for bell. Put them together and you get something like “little baby bell.” That soft, affectionate sound is part of why the word has spread so quickly beyond the Netherlands.

You may also see a babybelletje called by other names, depending on where you shop or who you ask:

• Pregnancy bola
• Harmony ball
• Angel caller
• Mexican bola
• Zwangerschapsketting (the Dutch term for pregnancy necklace)

They all describe the same basic idea. A pendant, a hidden bell, and a chain long enough to sit on the belly.

Where the Babybelletje Tradition Comes From

The babybelletje is not a modern invention dreamed up by a jewelry brand. It has roots that stretch back centuries, and two regions get most of the credit for shaping the tradition we see today.

The Mayan Origins in Mexico

In Mexico, this pendant is often called the Llamador de Ángeles, or the Angel Caller. According to Mayan folklore, humans and their guardian spirits once lived side by side. When they were separated, the spirits gave people small silver spheres that chimed when struck together.

The idea was simple. Whenever someone felt scared, alone, or in need of comfort, they could shake the sphere. The soft ring was believed to call their guardian angel close. Pregnant women adopted this practice as a way to invite a protective presence for the baby growing inside them, and the custom carried forward through generations of Mexican mothers.

The Balinese Harmony Ball

Around the same time, silversmiths in Bali were shaping nearly identical chiming spheres by hand. In Indonesian tradition, these are known as harmony balls, and they were worn to bring balance and peace to the wearer.

Both traditions arrived at the same object through completely separate paths, which says something about how universal the idea of a soothing, protective sound really is. Across two continents, with no shared history and no communication between the cultures, mothers reached for the same solution when it came to comforting a child not yet born. That kind of coincidence tends to stick around because it taps into something people recognize on a gut level, long before anyone explains the folklore behind it.

Traders and travelers helped these traditions spread over the centuries. Silver work from Bali made its way into European markets through trade routes, while Mexican silverwork found new audiences as tourism and craft exports grew through the twentieth century. By the time these pendants reached Dutch shops and maternity boutiques, the spiritual backstory had softened into something more universal. Fewer people wore the pendant to summon a specific guardian spirit, and more wore it simply because the story felt meaningful and the sound felt calming.

How the Word Babybelletje Became Popular in the Netherlands

The specific term babybelletje took hold in the Netherlands and spread from there across parts of Europe. Dutch expecting mothers took to the pregnancy necklace with a belletje as both a stylish accessory and a small ritual object tied to the pregnancy itself. From baby boutiques to pregnancy forums, the babybelletje became a recognizable part of Dutch maternity culture, and searches for the word have only grown since.

How a Babybelletje Actually Works

The mechanism inside a babybelletje is refreshingly simple. There is no battery, no circuit, and nothing to charge.

Inside the pendant sits a small metal ball resting against a curved plate, sometimes described as a tiny xylophone. When the mother moves, walks, sits down, or even shifts her weight, gravity moves the ball just enough to strike the plate. That produces the soft, melodic chime the babybelletje is known for.

Because the sound is purely mechanical, it feels warmer and less sharp than anything electronic. Most pendants are crafted from sterling silver, brass, or gold plating, both for durability and because these metals tend to produce a clearer, more resonant tone.

Solid Sphere or Open Cage Design

Babybelletje pendants generally come in two styles.

1. Solid sphere: A closed, smooth ball where the chime is muffled and soft.
2. Open cage sphere: A decorative, hollow design that lets the sound travel more freely and often rings a bit louder.

Neither style is objectively better. It comes down to personal taste and how noticeable you want the sound to be.

Some pendants also include small decorative details worked into the metal, such as tiny cutout hearts, footprints, or floral patterns around the cage. These do not change how the bell sounds, but they let the babybelletje double as a small piece of personal style rather than a purely functional item. A few makers also offer interchangeable pendants on the same chain, so the necklace itself can be reused for future pregnancies while the chime inside gets swapped out for a fresh one.

Caring for a Babybelletje

Because most pendants are made from sterling silver or brass, care is simple. Keep the pendant away from strong perfumes, lotions, and chlorine, since these can dull the shine over time. A soft polishing cloth after a few weeks of daily wear keeps the metal looking bright. If the chain gets tangled, gently work out the knot by hand rather than pulling, since the thin cord or chain link can weaken under too much tension.

Does the Baby Actually Hear the Bell?

This is where things get interesting, and honestly, where a lot of the marketing around babybelletjes oversimplifies the science.

A baby’s hearing develops enough to pick up sounds from outside the womb at around 20 weeks of pregnancy. That timeline is accurate and widely supported by prenatal research. What is less certain is exactly how much of the babybelletje’s chime actually reaches the baby.

Sound has to travel through layers of amniotic fluid, tissue, and muscle before it reaches the baby’s ears. Research on prenatal hearing suggests that external sound loses somewhere around 30 to 40 decibels of intensity by the time it gets that far in, similar to the drop in volume between a normal conversation and a whisper. Low, bass-heavy sounds tend to travel through this barrier more easily than high-pitched ones.

A babybelletje produces a light, high-pitched tinkle, which is exactly the type of sound that struggles most to pass through those layers. So while it is entirely possible your baby picks up on the vibration or a faint trace of the chime, no formal studies have confirmed that babies clearly hear the specific sound of a babybelletje while still in the womb.

What babies do hear clearly, from around 20 weeks onward, is the mother’s heartbeat and her voice. Those low, steady, familiar sounds are the ones a newborn recognizes immediately after birth.

So Why Do So Many Mothers Still Wear One?

Because the value of a babybelletje was never only about proven acoustics. Many parents wear it as a small mindfulness anchor for themselves. The gentle chime as you walk becomes a quiet reminder to slow down, breathe, and stay present with the pregnancy. It also works as a bonding ritual, a small daily habit that keeps the pregnancy front of mind during busy days.

And for a lot of families, the babybelletje carries emotional and cultural weight that has nothing to do with decibels. It represents protection, tradition, and the transition into motherhood, the same way it did for Mayan and Balinese mothers long before hearing tests existed.

Is Wearing a Babybelletje Safe?

Yes. Wearing a babybelletje during pregnancy carries no known medical risk. It is simply a necklace, and most midwives and obstetricians have no objection to it.

There is one small piece of folklore worth mentioning, though it is not backed by scientific evidence. Some traditions hold that a baby may be drawn toward the sound and shift position to face it. Because of this old belief, some caregivers suggest keeping the pendant positioned a little lower on the belly, especially in the final weeks of pregnancy, just as a precaution.

If you ever feel unsure, it costs nothing to ask your midwife or doctor how they feel about it during your next appointment. Most will tell you the same thing: wear it if you enjoy it, and do not worry if you do not.

A few practical safety notes are worth keeping in mind regardless of what you decide. Choose a chain with a secure clasp so the pendant does not slip off during daily activity. If you plan to keep wearing the babybelletje during exercise or sleep, consider a shorter length or removing it altogether during those hours, simply to avoid any tangling. And if you notice any skin irritation from the metal, switching to hypoallergenic sterling silver usually solves the problem.

Using a Babybelletje After the Baby Is Born

One of the nicest parts of the babybelletje tradition happens after delivery, and it is a detail a lot of first-time parents miss.

Newborns arrive into a world full of new, loud, unfamiliar sounds. Anything that feels consistent and recognizable can help them settle. If you wore your babybelletje throughout pregnancy, that same soft chime may already feel familiar to your baby by the time they are born.

Many parents shorten the chain and hang the pendant securely near the crib, well out of the baby’s reach, so the familiar tone can still be part of soothing routines during naps or nighttime settling. Others keep wearing it themselves for the first weeks postpartum as a way to carry the pregnancy ritual a little further into early parenthood.

Eventually, most families set the babybelletje aside as a keepsake. It becomes less of an everyday accessory and more of a small memory object, something to pull out years later and remember exactly how those nine months felt.

Some parents choose to pass the pendant down to their child once they are older, telling the story of how it was worn throughout the pregnancy and hung near the crib during those first sleepless weeks. Others use it as a small gift for the child’s own future pregnancy one day, turning a personal keepsake into a small family tradition that stretches across generations. There is no single right way to retire a babybelletje. Some families tuck it away in a memory box alongside the hospital bracelet and first outfit, while others keep it displayed somewhere visible as a quiet reminder of that chapter of life.

Choosing a Babybelletje: What to Look For

If you are thinking about picking one up for yourself or as a gift, a few practical details make the decision easier.

Material

Sterling silver is the most common choice. It is durable, generally safe for sensitive skin, and develops a soft patina over time that some people find charming. Gold plating suits those who prefer warmer tones, while brass offers a more affordable option without sacrificing sound quality.

Chain Length

Because your belly grows throughout pregnancy, look for an adjustable chain. You want the flexibility to let the pendant sit comfortably against the bump as your body changes over the months.

Sound Preference

Not every babybelletje sounds the same. Some chime brightly, others produce a lower, muted tone. If you are buying in person, it is worth gently shaking a few different pendants to hear which sound you actually like living with for the better part of a year.

With or Without the Bell

If the idea of a constant chime does not appeal to you, some pendant necklaces are made without the internal bell mechanism at all. These keep the same symbolic meaning and design without any sound, which suits mothers who simply want the accessory without the noise.

Babybelletje: More Than One Meaning

Here is something worth knowing if you keep seeing the word babybelletje pop up in unrelated places online. The term has picked up a few extra meanings recently, mostly through social media and everyday Dutch slang.

• Pregnancy necklace: The primary meaning covered throughout this guide.
• Mini Babybel cheese: In Dutch and Flemish households, the small wax-covered cheese snack is sometimes affectionately nicknamed babybelletje because of its round shape and the little “pop” sound the wax makes when opened.
• A soft aesthetic trend: On platforms like TikTok and Pinterest, babybelletje has become shorthand for a gentle, pastel, cozy lifestyle look, similar in spirit to cottage core.
• An affectionate nickname: Some parents and grandparents simply use it as a sweet pet name for a little one, separate from any product at all.

If you searched the word expecting cheese or a soft pastel mood board and landed here instead, now you know why the confusion happens so easily. The pregnancy necklace remains the original and most widely searched meaning, but language has a way of stretching a good word in every direction it can.

Final Thoughts on the Babybelletje

At its core, a babybelletje is a small object carrying a big amount of meaning. It began as a spiritual symbol in Mexico and Bali, traveled through Dutch maternity culture, and now sits somewhere between an accessory, a keepsake, and a quiet daily ritual for expecting mothers everywhere.

The science behind whether your baby truly hears the chime is still uncertain, and that is fine. What is not uncertain is the comfort many mothers find in wearing one, the memories it creates, and the gentle bridge it builds between pregnancy and those first sleepy newborn nights.

Whether you choose a babybelletje for the tradition, the sound, or simply because it is a beautiful thing to wear during one of the biggest chapters of your life, it remains exactly what it has always been. A small bell, carrying a lot of love.