pregnant mom wondering if exercise is safe for her baby and if there are any health benefits to prenatal workouts

Is Working Out During Pregnancy Safe for My Baby? These 8 Health Benefits Say Heck Yes

The Truth About Pregnancy Workouts and Keeping Your Baby Safe

Before we get into the good stuff, let’s be clear:

Yes, it’s safe to work out during pregnancy—as long as you’re medically cleared and modifying appropriately. 

Your body is built to move, and that includes when you’re pregnant. In fact, the American College of Obstetricians and Gynecologists (ACOG) recommends 150 minutes of moderate-intensity activity per week during pregnancy (unless contraindicated).

But what most people don’t know?
Exercising during pregnancy doesn’t just help you feel stronger and more energized—it helps your baby, too.

Let’s break down exactly how.👇👇

➡️1. Prenatal Exercise Improves Placental Function and Nutrient Exchange

When you move, your blood flows better. And when your blood flows better, your placenta works more efficiently, delivering more oxygen and nutrients to your baby while removing waste more effectively.

🧠 Fun Fact: Exercise during the first 20 weeks of pregnancy has been shown to positively impact the size and function of the placenta, making it more efficient overall.

💡 Translation? Baby gets what they need to grow and thrive.
Think of it like this: You’re improving the supply chain. More movement = better delivery of the good stuff and a cleaner environment overall.

➡️2. Working Out While Pregnant May Produce Higher Physical Health Scores at Birth

Babies born to moms who exercised during pregnancy tend to have higher APGAR scores (the quick test done right after birth to assess your baby’s physical condition).

That means:

✔️ Better muscle tone
✔️ Stronger reflexes
✔️ Healthier breathing and heart rate

AKA: Your little one may come out thriving.

➡️3. Exercising During Pregnancy May Promote Increased Intelligence Scores in Early Childhood

Yep, you read that right. Some studies suggest that prenatal exercise can boost baby’s neurological development, especially when it comes to memory, language, and cognitive function in the toddler years.

Why? Improved brain oxygenation, better stress resilience, and hormonal benefits passed from you to your baby during exercise all play a role. So while you’re working out for your health, you’re also supporting your baby’s future learning and brainpower. 🧠💪

➡️4. Babies Born to Moms Who Exercise While Pregnant May Have Improved Stress Resilience During Birth—and Beyond

Exercise is one of the best ways to train your and your baby’s nervous systems to handle stress. 

Studies show that babies born to moms who exercised during pregnancy: 

✔️ Have steadier heart rates during labor (which could potentially decrease interventions)
✔️ Recover more quickly from birth stress (because yes birth is a stress on them!)
✔️ Show healthier stress responses in early childhood

💡 It’s like nervous system training—on a cellular level. You’re helping your baby become more resilient from day one.

➡️5. Working Out While Pregnant Can Support Your Baby’s Heart Health

Prenatal workouts doesn’t just get your heart pumping—they help build a stronger cardiovascular system for baby, too.

Regular movement during pregnancy can: 

❤️ Improve baby’s heart rate variability (how well their heart adapts to changes in stress and environment)
❤️ Support stronger cardiovascular development
❤️ Potentially reduce the risk of future heart conditions

Not only are you helping build a strong little heart (adorable), but heart rate variability is one of the best indicators of overall heart health and stress adaptability—even in utero.  

➡️6. Maintaining a Workout Routine During Pregnancy May Lead to a Reduced Risk of Childhood Obesity

One of the most powerful things you can do to support your child’s future metabolism? Move during pregnancy.

Research shows that prenatal exercise can help: 

✔️ Regulate fetal fat cell development
✔️ Reduce insulin resistance in utero
✔️ Lower baby’s risk of developing obesity in childhood

This doesn’t mean your child’s health is totally determined before birth—but your habits now can play a powerful and protective role long-term.

➡️7. Babies Born to Moms Who Workout During Pregnancy May Have a Healthier Birth Weight

Prenatal strength training and aerobic activity are associated with healthier, more optimal birth weights. Not too high, not too low—just right.

This is important because: 

⚠️ Higher birth weight (macrosomia) is associated with delivery complications
⚠️ Lower birth weight can increase risks of developmental delays
💡 Moderate exercise helps strike the balance by supporting steady fetal growth and maternal blood sugar regulation.

➡️8. Exercising While Pregnant May Lower Your Baby’s Risk of Chronic Illness Later in Life

What you do now can have long-term benefits for your baby’s future health.

Prenatal movement has been linked to: 

✔️ Lower inflammation in utero
✔️ Better metabolic health markers at birth
✔️ Reduced risk of conditions like type 2 diabetes, cardiovascular disease, and other chronic conditions later in life

You’re not just building a healthy pregnancy—you’re building a healthier foundation for your child’s future.

So… Is Working Out During Pregnancy Safe for Baby?

Absolutely. And not only is it safe—it’s one of the best things you can do for both of you.

When done correctly and intentionally, prenatal exercise supports: 

✅ Your strength, comfort, and confidence
✅ Your baby’s development, brain health, and future resilience
✅ A smoother labor, delivery, and postpartum recovery

✨ Want to learn more about what strength training during pregnancy can do for you? Check out this post on the benefits of prenatal strength training for pregnant moms.

Ready to Work Out Confidently for You and Baby?

You don’t need to figure it all out on your own. I’ve got tools to help you move safely and effectively—whether you’re brand new to lifting or just trying to keep up with your workouts while pregnant.

📞 Book a Free 10-Minute Call with Me (click) – Let’s create a customized training plan that supports both you and baby.

 💬 DM Me (click) – Not sure where to start? Let’s talk about your pregnancy, goals, and how to stay active safely.

🎁 Grab My Birth Prep Freebie – Learn four daily exercises to feel mentally and physically strong and perepared for birth. [Download it here!]

📚 Unlock All the Pregnancy Workout Secrets – My Still Lifting, Just Shifting E-Book is your go-to guide for safe, effective pregnancy modifications—so you can keep doing your favorite workouts, and stay strong, supported, and ready for birth. [Get on the waitlist here – being released 4/7/25!]

pregnancy workout modifications e-book