Written by

Gina Conley, MS

October 20, 2025

Birth Ball Routine: Enhance Your Pelvic Mobility for an Easier Birth

Birth Preparation, Fitness, Prenatal

When it comes to preparing your body for birth, movement is one of your most powerful tools. Using a birth ball (or stability ball) can help you stay strong, mobile, and comfortable throughout pregnancy while also supporting your baby’s position for birth. This workout focuses on mobilizing your hips, spine, and rib cage — key areas that directly influence your pelvic space and pelvic floor tension.

So, grab your birth ball and let’s move through this eight-minute birth prep flow!

If you need help selecting the right birth ball for you, check out our YouTube video and shop our favorite birth balls HERE!

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1. Wall-Assisted Tabletop Rock

Start in a tabletop position with your butt pressing into the ball against a wall. As you gently press your hips into the ball, round your back and take a big inhale into your rib cage and back body. Then, exhale and draw your belly toward your spine.

Many pregnant women naturally shift into a more arched-back posture. This movement encourages the opposite — flexion — which helps decompress the spine, release the back of the pelvis, and improve mobility.

Repeat for about 60 seconds, focusing on expanding the back with your breath.

2. Adductor Rock Backs

Next, bring the ball in front of you and extend your left leg out to the side while your right knee stays bent. As you sit back into your heel, you’ll feel a stretch through your inner thigh.

Inhale as you come forward and roll the ball toward your hips.
Exhale as you push the ball away and rock back.

After about 30 seconds, switch sides. You might notice one side feels tighter — that’s completely normal. Pause where you feel resistance, breathe into that space, and gently move through it.

This exercise helps balance tension in the inner thighs and hips, which can influence how easily your baby engages in the pelvis.

3. Side Body Stretch Over the Ball

Come to a side-lying position with your left knee bent and your right leg extended. Lean your side over the ball, using your left arm for support. You’ll feel a big stretch through the right side of your body.

Inhale deeply into the top ribs.
Exhale, drawing your belly toward your spine.

Hold for 60 seconds, then switch sides. This movement improves lateral rib mobility — a crucial yet often-overlooked factor in how your pelvis moves. When your rib cage and spine can move freely, your pelvis can open more effectively during birth.

4. Seated Rib Cage Mobility and Rotation

Sit tall on your ball. Start by reaching your right arm overhead to stretch the side body. Then, open the right arm behind you as you reach your left arm forward to add gentle rotation through your thoracic spine.

Alternate between side bends and twists for 60 seconds, then switch sides.

You might be thinking, “This feels more like a rib cage workout than a birth prep workout.” But here’s the thing — your rib cage position directly affects your pelvis. If your spine and ribs are locked in extension, it limits how much space you can create in your pelvis. This mobility helps your baby navigate through your pelvis more easily during labor.

5. Internally Rotated Rock Backs

To finish, come back to a tabletop position with your knees in and ankles turned slightly outward. As you move forward, round your back and then sit back toward your heels.

This position encourages internal rotation of the hips, which helps open the bottom of the pelvis — the space your baby needs during pushing. You don’t need to go too deep; focus on maintaining control and a rounded spine as you move.

Why This Flow Works

This short circuit targets thoracic mobility (the area around your rib cage and upper back), side-body expansion, and rotational movement — areas that are often tight during pregnancy.

By releasing these spaces, you help your pelvis move more freely, allowing for better alignment, comfort, and readiness for labor. The combination of open-hip and internally rotated positions ensures you’re creating space in both the top and bottom of your pelvis — critical for different stages of labor.

Final Thoughts

If you loved this workout, check out our online prenatal fitness programs. You’ll get daily workouts to help you stay strong, pain-free, and ready for birth. Use code YOUTUBE10 for 10% off any online program.

Remember: pain is not a requirement of pregnancy. With intentional movement and proper preparation, you can move through your pregnancy and birth with confidence and strength.

And don’t forget to subscribe to our YouTube channel — we release new workouts every Tuesday to support your body through pregnancy, birth, and postpartum recovery.