Third-Trimester Hip-Opening Exercises to Prepare for Labor

You wrote hip-opening exercises: essential in your third-trimester checklist, but couldn't find anything that told you which move to do, for how long, or how many reps. There's a reason for that. Search third trimester exercise and most results either cover back-pain stretches or safety rules meant to span the entire pregnancy — neither of which directly addresses widening the hip and pelvic range of motion before delivery. Stretching because your back hurts and opening your hips to widen the passage your baby will move through are different goals, and that means the positions, hold times, and pacing need to differ too.

This article is scoped to the third trimester (28 weeks and beyond) and walks through five moves aimed specifically at widening hip range of motion and loosening the tissue around the pelvic outlet — starting position, breathing, sets, common mistakes, and stop signs for each. If your goal is reducing back pain itself, start with our trimester-by-trimester back pain exercise guide instead, and treat this routine as the next step: preparing your hips and pelvis in the weeks leading up to delivery. As with that guide, this routine assumes a normal, singleton pregnancy with no identified risk factors — how much of it applies to you depends on your individual obstetric status, so talk with your obstetrician before starting.

Why Hip-Opening Movements Genuinely Help You Prepare for Labor

Opening the hips sounds vague, but it actually points to two concrete goals. The first is widening hip flexion and external rotation range ahead of time so you can comfortably take up effective second-stage positions — squatting, kneeling, positions that widen the pelvic outlet. The second is releasing tension in the adductors and deep external rotators, including the piriformis, so you can actually hold that position for longer. For anyone who spends most of the day sitting, both of these tend to already be limited.

The evidence that position itself changes pelvic outlet size

Russell's radiographic pelvimetry study, published in the British Journal of Obstetrics and Gynaecology (1969), photographed and compared pelvic outlet diameters in women lying supine versus squatting. The squatting position showed roughly a 1cm increase in the transverse diameter of the outlet and roughly a 2cm increase in the anteroposterior diameter compared to lying supine. The limitation is that this is a purely anatomical study using 1969-era radiography to measure bone position — it didn't directly observe clinical outcomes like labor duration or fetal outcomes. In other words, the pelvic outlet physically widening and that translating into a shorter, easier labor are two separate questions.

The second question — whether position actually affects labor course — was examined by Golay, Vedam, and Sorger in a study published in Birth (1993). They compared hospital birth cohorts using a squatting position versus conventional positions during the second stage of labor. The results weren't simple. Among multiparous women, the squatting group's second stage was significantly shorter; among first-time mothers, there was no significant difference by position. The squatting group also showed a higher rate of perineal and labial lacerations, leading the authors to conclude that squatting isn't uniformly advantageous for every laboring person. This study's limitations include a non-randomized design (women self-selected their position) and a modest sample size, roughly 40 per group.

What movement itself does for pain and confidence

Just as important as hip mobility is the muscular coordination to actually change position during labor. Gau, Chang, Tian, and Lin's randomized controlled trial, published in Midwifery (2011), studied 108 first-time pregnant women in Taiwan, comparing a group coached in birth-ball pelvic movement exercises from late pregnancy against a group receiving standard care only. The birth-ball group reported significantly lower pain scores during labor and significantly higher childbirth self-efficacy scores (confidence in their own ability to cope with labor). The limitations are that the birth ball itself made blinding impossible for both participants and researchers, and the sample came from a single hospital.

What these three studies point to in practice is this: the evidence that hip-opening movements will reliably shorten labor time is still thin, but the evidence that they help build a body capable of comfortably assuming pelvic-outlet-widening positions — while also building pain-coping capacity and confidence along the way — is fairly clear. The routine below is built to target both of those things: securing range of motion and training muscular coordination.

This Isn't a Back-Pain Routine: What's Actually Different

Search for pregnancy exercise and back-pain relief stretches get mixed in with hip-opening moves constantly. The positions can look similar, but the tissue and the goal they target are different. Back-pain relief work focuses on reducing lumbar lordosis and releasing tension in the erector spinae and quadratus lumborum. This routine instead targets the adductors, piriformis, and glutes — the muscles wrapping the pelvis from the side — along with hip flexion range.

That distinction matters in practice. Someone with severe back pain who jumps straight into the deep squat hold below could end up adding more load to the lumbar spine. Conversely, someone with tight hips who only repeats back stretches won't get much benefit toward labor positioning. If both apply to you — a sore back and stiff hips — prioritize the trimester back-pain guide's moves during weeks when the back pain is acute, and pick this routine back up once that settles. You don't need to do both routines on the same day; let what your body is signaling that day decide.

Before You Start: Timing, Tools, and Setup

This routine covers 28 weeks onward — the entire third trimester — but the point where you actually raise intensity sits around week 36. Weeks 28 through 35 are an exploration phase for widening range of motion; from week 36 on, you maintain that range while shifting more weight toward movements like the birth-ball hip circle that you can also use during actual labor. The exact week-by-week intensity breakdown is in the progression table below.

Three tools are enough. First, a birth ball for seated pelvic movement — pick a size where your knees sit slightly below or level with your hips when seated. Second, a cushion or folded blanket to place under the pelvis for butterfly or straddle positions. Third, a doorframe or heavy, stable piece of furniture to partially support your weight during the deep squat hold. Confirm your mat surface won't slip, and if you're exercising alone, choose a space near something you can grab, like a doorframe or bathroom rail.

Warm up for 2 to 3 minutes with marching in place or light walking beforehand, and keep water within reach, drinking before you feel thirsty. Your capacity to regulate body temperature is reduced in late pregnancy, so exercise somewhere well-ventilated and cut back on sets on days you're sweating heavily.

Time of day is also worth considering. Mornings or early afternoons — when fetal movement feels steady and you're less swollen — tend to be easier for most people than evenings, when the belly feels heaviest. This isn't an absolute rule, though; individual variation is significant, so try a few different times of day and see what suits you. It's also worth practicing the birth-ball hip circle with a partner or family member ahead of time, since that naturally sets them up to support your position once labor actually starts.

The 5-Move Third-Trimester Hip-Opening Routine

The five moves are ordered to be done in sequence, but on days you're not feeling it, cutting down to just the birth-ball hip circle and the butterfly stretch is fine. On days you have more energy, you can extend the hold time on the deep squat hold a little further.

Move 1. Doorframe-Supported Deep Squat Hold

Starting position Hold both sides of a doorframe or a stable, heavy piece of furniture with your hands. Stand with feet slightly wider than shoulder-width, toes turned out roughly 45 degrees.

Movement ① Lower your hips slowly while your arms take some of your body weight. ② Keep your knees tracking the same direction as your toes, and lower only as far as feels comfortable while your heels stay on the floor. ③ If your heels lift, stop there and prop a folded blanket under your heels to adjust the height.

Breathing Inhale as you lower, breathe naturally while holding, and exhale as you rise while gently lifting through the pelvic floor.

Sets and frequency Hold 20 to 30 seconds, 3 rounds, 4 to 5 times a week. Daily is fine from week 36 on if you're feeling good.

Common mistakes and fixes The most common issue is heels lifting and weight shifting onto the balls of the feet. If your heels lift, prop a folded blanket or low cushion under them to compensate for ankle stiffness. Knees caving inward is also common — cue a gentle push outward through the knees to correct it.

Red flags Sharp pain at the pubic symphysis, dizziness, or belly tightening call for stopping immediately. Next time, cut the squat depth in half, and if symptoms repeat, skip this move for the session and substitute the others.

Move 2. Birth-Ball Hip Circle

Starting position Sit on a birth ball with feet shoulder-width apart and fully planted on the floor, knees bent roughly 90 degrees, back upright.

Movement ① Without swinging your upper body much, move only your pelvis in a slow clockwise circle. ② Repeat counterclockwise. ③ Gradually widen the circle within a comfortable range, staying short of any pain.

Breathing Don't hold or force your breath at any point — breathe naturally in rhythm with the circling.

Sets and frequency 10 reps clockwise and 10 counterclockwise makes one set; do 2 sets, 5 to 6 times a week. This is a movement you can use the same way during actual labor later.

Common mistakes and fixes An overinflated or mismatched ball size causing instability is common. Choose a size where your knees sit slightly below or level with your hips when seated, and let a little air out if you need more stability.

Red flags If you lose balance or feel dizzy, stop immediately and plant both feet firmly on the floor while you rest. If you're exercising alone, only do this near a couch or wall you can grab.

Move 3. Butterfly Stretch

Starting position Sit on the floor with the soles of your feet together and knees falling naturally out to the sides. If your pelvis tucks under, prop a cushion beneath your hips.

Movement ① Keep your upper body upright and tilt forward slightly from the hips — the fold happens at the hip joint, not by rounding the lower back. ② Don't press your knees down with your hands; let gravity and time open them naturally.

Breathing Exhale as you tilt forward, inhale as you return upright.

Sets and frequency Hold 30 to 40 seconds, 3 rounds, 5 to 6 times a week.

Common mistakes and fixes Pressing the knees down with your hands to force them open is common. That loads the inner ligaments unnecessarily — rest your hands lightly on your feet instead and let time do the opening.

Red flags Sharp pain at the pubic symphysis means you should reduce how far your knees fall and raise the cushion height under your hips to soften the pelvic angle.

Move 4. Side-Lying Figure-4 Stretch

Starting position Lie on your side with your bottom leg comfortably bent, and rest your top ankle across your bottom knee to form a figure 4. Support your head with your arm or a thin pillow.

Movement ① Gently press your top knee down toward the floor with your hand and notice the pull along the outside of your hip. ② Keep your pelvis facing forward and fixed, avoiding rotating your whole torso along with it.

Breathing Exhale as you press the knee down, breathe naturally while holding.

Sets and frequency Hold 20 to 30 seconds, 2 to 3 rounds per side, 4 to 5 times a week.

Common mistakes and fixes The pelvis rolling backward along with the lower back rotating is a common error. Rest one hand on the front of your pelvis to check whether it's rolling as you go, which reduces this mistake.

Red flags If you feel sciatica-like tingling or pain radiating down the back of the leg, ease off the pressure on your knee, and if the tingling persists, stop the move and get it evaluated by a professional.

Move 5. Supported Straddle Forward Fold

Starting position Sit on the floor with legs comfortably wide apart to the sides, and place a cushion or low chair in front of your torso.

Movement ① With enough room for your belly to sit comfortably, tilt forward slowly from your hips. ② Rest your forearms on the cushion or chair to support your upper body weight. Keep your back straight rather than rounding it, with the fold happening at the hip joint. ③ To come up, press through your knees or the floor with your hands and rise slowly.

Breathing Exhale as you fold forward, breathe naturally while holding, inhale as you come up.

Sets and frequency Hold 30 to 45 seconds, 2 to 3 rounds, 4 times a week.

Common mistakes and fixes Pushing deeper even when you feel pressure on your belly is a common mistake. Fold only to the angle where your belly stays comfortable, and raise the cushion or chair height to reduce the range if needed.

Red flags Sharp inner-thigh pain, dizziness, or shortness of breath call for stopping immediately and resting on your side for a few minutes.

Week-by-Week Progression: From Week 28 to Delivery

The table below is a general guideline assuming a normal pregnancy with no identified risk factors. Even with a set due date, actual pacing can shift earlier or later depending on how you feel and whether pain shows up that day.

If one particular move keeps leaving soreness during a given week, dial back that one move rather than the whole routine. If the deep squat hold specifically leaves pubic discomfort, for example, cut the hold time from 20 seconds to 10-15 seconds and keep the rest of the table as scheduled.

This routine doesn't guarantee an easy delivery

As the research above shows, hip mobility and position training can help build a body that can take up and hold effective positions during labor, but they aren't a single factor that determines labor duration or delivery method. Treat this routine as one of several ways to prepare your body, and let your care team's judgment guide the actual course of labor.

Contraindications and Stop Signs Before You Begin

This routine assumes a normal, singleton pregnancy with no identified risk factors. If any of the following apply to you, talk with your obstetrician before starting — this article doesn't replace that consultation or their care plan.

• A diagnosis related to placenta position, such as placenta previa or a low-lying placenta
• Cervical insufficiency or a history of preterm labor
• A multiple pregnancy (twins or more) with separate exercise guidance from your care team
• Gestational hypertension or preeclampsia, diagnosed or suspected
• Suspected vaginal bleeding or ruptured membranes
• Symphysis pubis dysfunction (SPD) severe enough to already make walking uncomfortable: in this case, the deep squat hold and butterfly stretch should only be attempted with squat depth and knee width heavily restricted, and only after your provider confirms it's appropriate

Signs to stop the routine immediately and seek care

• Regular, recurring belly tightening (contractions) during or right after a move
• A noticeable drop in fetal movement compared to usual
• Dizziness, shortness of breath, or blurred vision during a move (especially when transitioning off the birth ball)
• Vaginal bleeding or unusual discharge appearing alongside anything above
• Pubic pain that suddenly becomes severe enough to make walking difficult

If any of these signs appear, contact your obstetrician immediately regardless of whether you were exercising — neither this routine nor any self-care measure can substitute for judging these emergency signals.