Pregnancy-related back pain ranges from a dull ache to sharp, debilitating pain, and it affects a majority of pregnant people, particularly in the second and third trimesters. The good news: most severe back pain during pregnancy responds well to a combination of targeted exercises, posture adjustments, support devices, and safe pain relief options. Here’s what actually works.
Why Pregnancy Causes Back Pain
Your body produces a hormone called relaxin throughout pregnancy, and its job is to loosen the ligaments in your pelvis so your body can accommodate a growing baby and eventually deliver. The tradeoff is that relaxin also loosens the muscles and ligaments around your back and abdomen, which can make your spine feel unstable and weak. This instability, combined with the weight of a growing uterus shifting your center of gravity forward, forces your lower back muscles to work overtime to keep you upright.
The result is a condition called pregnancy-related pelvic girdle pain, which can show up as pain across one or both sides of your lower back, in the front of your pubic bone, in your inner thighs, or in the perineum. Some people barely notice it. Others find it severe enough to interfere with walking, sleeping, and daily tasks. The severity often increases as pregnancy progresses, peaking in the third trimester when the mechanical load on your spine is greatest.
Exercises That Reduce Lumbar Strain
Targeted exercises are one of the most effective tools for managing severe back pain during pregnancy. They strengthen the muscles that support your spine and counteract the instability caused by loosened ligaments. Two exercises physical therapists commonly recommend can be done at home with no equipment.
Pelvic Tilts
Get on your hands and knees with your back in a neutral, straight position (a mat under your knees helps). Pull your stomach muscles inward and tuck your buttocks under, tilting your pelvis upward so your back rises gently toward the ceiling. Hold for a count of five, then relax back to neutral. This movement strengthens the deep abdominal muscles that act as a natural brace for your lower spine. Repeat 10 times, working up to two or three sets per day.
Kneeling Leg Lifts
From the same hands-and-knees position, with your arms directly under your shoulders, round your back slightly. Bring your left knee toward your elbow, then slowly extend the leg behind you with a slight bend in the knee. Lift only until you feel a gentle stretch in your lower back, and don’t raise your leg higher than hip level. Hold for five counts, lower, and repeat on the other side. Stop immediately if you feel pressure in your abdomen. This exercise strengthens the muscles along your spine and glutes, which bear much of the load during pregnancy.
Walking, swimming, and prenatal yoga also help by keeping supporting muscles active without placing heavy impact on your joints. Even 20 to 30 minutes of gentle movement most days can significantly reduce pain severity over time.
How to Sleep With Less Pain
Sleep is often where back pain feels worst, since lying down for hours can put sustained pressure on an already strained spine. Once your abdomen starts to expand, side sleeping with one or both knees bent is the position most experts recommend, ideally on your left side to optimize blood flow.
Pillow placement makes a real difference. Put a pillow between your knees to keep your hips aligned and reduce pressure on your lower back. A second pillow tucked under your belly supports the weight of your uterus so it doesn’t pull your spine into rotation. Some people also place a pillow against their lower back for additional support. Full-body pregnancy pillows, which wrap around your torso and between your legs, accomplish all of this at once and are worth trying if repositioning individual pillows every night becomes frustrating.
Daily Posture and Lifting Adjustments
Small changes to how you move throughout the day can prevent pain from escalating. When standing for long periods, keep one foot slightly elevated on a low stool or step to reduce the curve in your lower back. Sit in chairs with good lumbar support, or place a small rolled towel behind the curve of your lower back. Avoid crossing your legs, which tilts the pelvis unevenly.
Lifting is where many pregnant people make their pain significantly worse. The Mayo Clinic’s guidance is specific: squat down with a wide stance and bend at your knees, not at your waist. Keep your back straight, use your leg muscles to stand, and hold the object close to your body. Even with good form, know your limits. If something feels heavy, ask for help rather than pushing through it. A single bad lift can strain already-loosened ligaments and set your recovery back by weeks.
Maternity Support Belts
Maternity support belts are wide, elastic bands worn under the belly to mechanically support the weight of the uterus and stabilize the pelvis. Research published in the Journal of Manipulative and Physiological Therapeutics found that these belts reduce the mobility and laxity of the sacroiliac joints (the joints where your spine meets your pelvis) and improve postural balance across all three trimesters. The benefits were most pronounced in the third trimester, where balance impairment is greatest.
A good support belt takes some of the load off your lower back muscles, which can provide noticeable relief during activities like walking, standing at work, or doing household tasks. They’re not a cure, but when combined with exercises and posture changes, they can make the difference between a manageable day and a miserable one. Look for a belt that sits below your belly and across your hips, with adjustable compression so you can tighten or loosen it as your body changes.
Safe Pain Relief Options
Acetaminophen (Tylenol) remains the recommended first-line pain reliever during pregnancy. ACOG reaffirmed in 2025 that it is the safest analgesic option for pregnant people, recommending use at the lowest effective dose for the shortest necessary duration. You may have seen news about an FDA label change suggesting a possible link between prenatal acetaminophen use and neurodevelopmental conditions in children. ACOG reviewed the evidence and concluded that the strongest, most rigorous studies show no causal association, and no change in clinical practice is warranted.
NSAIDs like ibuprofen and naproxen are generally avoided during pregnancy, particularly in the third trimester, because of risks to fetal development. If acetaminophen isn’t controlling your pain, talk with your provider about alternatives rather than switching medications on your own.
Heat therapy is another simple tool. A warm (not hot) heating pad or warm bath can relax tight muscles and temporarily reduce pain intensity. Apply heat for 15 to 20 minutes at a time, and keep the temperature moderate to avoid overheating.
Acupuncture and Prenatal Massage
A systematic review in the American Journal of Obstetrics and Gynecology found that acupuncture, when added to standard treatment, was more effective at relieving pregnancy-related back and pelvic pain than standard treatment alone or even physical therapy exercises alone. Women with well-defined pelvic pain saw the greatest benefit. Adverse events were few and minor, making it a relatively safe option for people whose pain isn’t responding to exercises and ergonomic changes alone.
Prenatal massage from a certified practitioner can also help by releasing tension in the muscles along the spine and hips. If you pursue either option, choose a provider experienced in treating pregnant clients, since certain acupuncture points and massage techniques need to be modified or avoided during pregnancy.
When to Get a Professional Referral
If your back pain is severe enough to limit your ability to walk, work, or care for yourself, a referral to a physical therapist who specializes in prenatal care is the most important next step. These specialists can assess your specific pain pattern, identify whether it’s primarily lumbar (lower back), pelvic girdle, or a combination, and design a targeted program. Mayo Clinic prioritizes prenatal physical therapy referrals for patients with pelvic girdle and low back pain because these conditions respond well to hands-on treatment and guided exercise.
Back pain during pregnancy can also signal something more serious. Contact your provider if your back pain is accompanied by fever, burning during urination (which may indicate a urinary tract infection), or vaginal bleeding. Rhythmic back pain that comes and goes at regular intervals could be a sign of preterm labor, particularly if it occurs before 37 weeks. These situations need prompt evaluation, not home management.