What Does a Super Active Baby in the Womb Mean?

By the time I was about 20 weeks along in each of my three pregnancies, I could feel my babies elbowing me in the ribs, kicking me in the bladder and stretching out my stomach while they somersaulted around. Sometimes this was cute, but other times—like when one of my sons routinely got hiccups as soon as I tried to fall asleep—it was frustrating. Eventually, I learned to roll with my active babies’ punches (literally), but at times I wondered: What does a super active baby in the womb mean, exactly? Will I birth a human pinball who never stops moving?

The good news is that having a super active baby in the womb is usually nothing to worry about. Learn what all that movement means, and when to reach out to your provider, ahead.

Key Takeaways

• An active baby in the womb is typically not a cause for concern. Some babies are more energetic than others; increased movement is often a response to your diet, activity level or external factors like loud noises.
• Most providers only worry about baby’s movements when they suddenly decrease or differ from their usual pattern.
• In-utero movement plays an important part in baby’s development—it’s how they practice breathing, develop reflexes like swallowing and explore their body and environment.

Is Baby Moving Too Much?

“Too much” isn’t really a thing when it comes to fetal movement, explains Dr. Sharrón Manuel, MD, PhD, an ob-gyn and reproductive endocrinologist with HRC Fertility in Pasadena, California. “Just as every newborn has a unique personality, babies in the womb also have different activity levels,” she says. “A very active baby is usually a healthy baby.”

Additionally, Dr. Manuel adds that “an isolated episode of increased movement is usually not a sign of a problem—in fact, temporary bursts of activity are common throughout pregnancy.”

That said, in some cases, sudden or intense movement could be a sign of fetal distress (more on that later). But there’s a wide range of normal and what matters most is the overall pattern: If you notice a significant change in baby’s usual movement pattern, especially if baby’s very active in the womb and then suddenly inactive, it’s a good idea to reach out to your provider.

Why is baby very active in the womb?

There’s a variety of reasons baby may be very active in the womb, including your diet, activity level and what’s going on in your life.

Dr. Manuel adds that some babies just have more energetic personalities (yes, even in the womb!). Babies also have their own circadian rhythms: They tend to be most active between 9 p.m. and 1 a.m., says Dr. Ella Speichinger, MD, an ob-gyn at University of Missouri Health Care.

Sometimes, what you’re doing also affects baby’s activity level. This includes:

• Your diet: When you eat, your blood sugar rises, giving baby a boost of energy. It’s common for babies to wiggle around a lot in the womb after you eat, and even more so if you had something sugary. Though the occasional sugar spike won’t hurt baby, it’s a good idea to eat a healthy pregnancy diet to balance your blood sugar and help prevent complications like gestational diabetes.
• Activity level: When you’re up and moving around, your body movements often lull baby into a relaxed state. But that means the minute you lie down to rest or sleep, baby wakes up and wants to play. “[My son] loved when I laid down,” says Natalie B., a mom of one in Indiana. “That was his cue to start bouncing around.”
• External factors: Research says in-utero babies respond to things like loud noises and bright lights outside the womb. Angela B., a mom of one in Massachusetts, says her son was the most active when she played music: “Songs with a lot of bass or powerful sections of classical music made him move so hard at times it felt like my stomach was rumbling.”
• Maternal stress: Studies also show that babies move more in utero when Mom is experiencing a high amount of stress. This is because your cortisol levels rise when you’re stressed, and this can impact baby’s cortisol levels too. Some levels of stress during pregnancy are unavoidable, but it’s a good idea to practice mindfulness.

How much fetal movement is normal?

The basic guidelines are for baby to move at least 10 times in two hours, according to the American Pregnancy Association (APA). However, it’s much more important to make sure baby’s following their typical pattern. It’s a good idea to start kick counts when you’re around 28 weeks pregnant.

Most babies will move much more frequently than that unless they’re actively sleeping, Dr. Speichinger adds: “It often doesn’t take this long for baby to reach 10 movements—in one of the first studies to look at this, it took an average of 20 minutes for a mother to perceive 10 movements.”

What Should Baby’s In-Utero Movements Feel Like?

In-utero movement is different from trimester to trimester, changing as baby grows and develops. In the beginning, movement often feels like butterflies or gas bubbles, says Dr. Speichinger, before becoming more coordinated and turning into kicks, flips, somersaults and stretches. Most moms begin to feel baby’s movements by around 20 weeks pregnant.

But just because baby’s moving around in the womb doesn’t mean it will always be noticeable. Dr. Speichinger says an anterior placenta, aka a placenta positioned at the front wall of your uterus, can act as a cushion, absorbing more subtle movements.

Of course, the opposite may be true too: “I had a posterior placenta, which means it was attached to the back wall of my uterus, toward my spine, [and] I began feeling baby kick at around 14 weeks,” says mom Natalie B.

What’s Happening During Baby’s Movement?

Even though it might feel like baby’s kicking your bladder just for fun, they’re actually hard at work preparing for life in the outside world. According to Dr. Speichinger, babies spend lots of time in utero practicing things like sucking, swallowing and breathing. They also can yawn and stick out their tongue, and frequently get the hiccups, like my son did.

When they move around a lot, they’re often just trying to get comfortable—remember, they’re constantly outgrowing their space! Research suggests babies are also trying to explore their environment and grow their understanding of their own body when they’re moving in the womb.

When to Reach Out to Your Provider

For most expectant moms, a super active baby’s not indicative of a problem with your pregnancy. However, there are times when baby’s movement could be a warning sign.

According to Dr. Manuel, you should contact your provider if:

• Baby’s movement pattern changes significantly from what’s normal for them
• A period of increased movement is followed by a drastic decrease in activity
• You’re having difficulty feeling baby move
• You have concerns about fetal movement for any reason, even if you’re unsure whether it’s abnormal
• You experience other symptoms such as vaginal bleeding, leaking fluid, contractions, severe abdominal pain, severe headache or changes in vision

“The most important advice is to trust your instincts,” says Dr. Manuel. “You know baby’s patterns better than anyone, [so] if something feels different or concerning, don’t hesitate to call your provider.”

To Sum It Up

It’s totally normal to have a super active baby in the womb. Some babies are simply more energetic, while others like to do flips at certain times of the day or when you eat something sugary. Typically, having an active baby in the womb is a good thing: It means they’re practicing their reflexes and exploring their surroundings. The only time excessive movement is potentially a concern is if it’s a significant change from baby’s normal behavior or it’s followed by a long period of inactivity. If you’re having difficulty counting kicks or feel like baby’s movement pattern is very different than usual, reach out to your provider.

How We Developed This Article

Many moms wonder if a super active baby in the womb is a good thing, or if they need to flag it with their ob-gyn. To learn more about active in-utero babies, we asked two ob-gyns what goes on inside the womb and how much activity or movement is considered normal. We also consulted several medical and academic sources, including the Journal of Maternal-Fetal and Neonatal Medicine and UT Southwestern Medical Center. Finally, we spoke with real moms who experienced lots of movement.

After editing, this article was vetted through fact-check and reviewed by our ob-gyn medical adviser. Learn more about how we ensure the accuracy of our content through our editorial and medical review process.

About the author: Sarah Bradley is a freelance writer who combines her love of writing with her parenting experience, writing product reviews and reported features for a number of online parenting and health publications. Thanks to having three boys who were all super active in the womb, she knows exactly what it’s like to lie awake in bed at night while baby parties hard in-utero.

Please note: The Bump and the materials and information it contains are not intended to, and do not constitute, medical or other health advice or diagnosis and should not be used as such. You should always consult with a qualified physician or health professional about your specific circumstances.