Aching Knees During Pregnancy: Why They Hurt and What May Help

First things first: if you are pregnant, check with your doctor or midwife before trying any new movement, including the gentle ideas below. Everything here sits alongside your maternity care, never in place of it. With that said, aching knees during pregnancy are very common, and understanding why they ache can make them feel a lot less worrying.

Why knees ache when you are pregnant

Three changes arrive together, and your knees feel all of them.

More weight, gained quickly. A knee is used to your body adjusting load slowly, over years. Pregnancy adds weight over months, and the muscles around the knee need time to catch up. The ache is often simply a joint working harder than it is used to.

A shifting posture. As the belly grows, your center of gravity moves forward. The lower back arches more, the pelvis tilts, and the knees quietly change how they stand and walk. Small shifts at the hips can noticeably change what the knees are asked to do.

Looser ligaments. Pregnancy hormones, including relaxin, soften the ligaments so the pelvis can make room for birth. The effect is body wide, so the ligaments around the knees become more elastic too. A joint with softer ligaments relies more on its muscles, and tired muscles ache.

Joint and back complaints in pregnancy are the rule rather than the exception. One research review estimated that close to half of pregnant women, around 45 percent, experience low back or pelvic girdle pain during pregnancy (Wu et al., 2004). Knees are part of that same loaded chain, so it is no surprise they often join the conversation.

Gentle ideas many pregnant people find soothing

Every idea here is optional, and comfort is the test. If something feels unpleasant, leave it out.

Change position often. Long stretches of standing or sitting are what aching knees seem to mind most. Shifting your weight, sitting down, standing up, and moving around every twenty minutes or so costs nothing and often helps.

Keep walks short and frequent. A few relaxed ten minute walks tend to feel kinder than one long outing. Flat ground, comfortable shoes, and an unhurried pace.

Rest on your side. Side lying with a pillow between the knees takes pressure off the joints and the low back. In later pregnancy this also avoids lying flat on your back, which your midwife will likely have mentioned already.

Notice how you stand. Try softening your knees slightly instead of pressing them back into a locked position. Locked knees push the joint to its end range and ask the ligaments, already softer than usual, to hold everything.

Use your hands and furniture generously. Getting up from low chairs or the floor is heavier work now. Turning to the side and using an armrest is not giving up, it is good mechanics. Our guide on getting up off the floor with sore knees covers this in a calm, step by step way.

Where gentle awareness work fits

Because pregnancy changes your posture week by week, the way you walk, stand, and carry yourself keeps needing small updates. This is exactly what awareness based movement is about. The Feldenkrais Method® uses slow, comfortable movements, many of them done lying on your side or sitting, to help you sense how your hips, knees, and feet share the load. Nothing is forced, and there is no stretch to hold.

Many pregnant people find this kind of quiet exploration soothing precisely because it asks so little. Feldy offers short audio lessons in this style that you can follow at home, adapting any position to what your body prefers today. If your knees also feel stiff rather than only achy, how to treat stiff knees is a helpful companion read.

Two things belong in separate sentences here. Your maternity team, your doctor, your midwife, and any physiotherapist you see, remain your guides, and gentle lessons like these sit alongside their care. Other approaches such as prenatal yoga or swimming work through different mechanisms, stretch and breath in one case, buoyancy in the other, and you may enjoy them too.

When to call your doctor or midwife

Most pregnancy knee aching is dull, moves around, and eases with rest and position changes. Some signs deserve a call rather than patience: a knee that swells suddenly, feels hot, or looks red; one leg swelling more than the other; severe pain; or a knee that gives way. Sudden swelling elsewhere, in the face or hands, is also something your maternity team wants to know about promptly. None of these mean something is wrong for certain. They simply belong with your clinicians, who know you and your pregnancy.

Common Questions about aching knees during pregnancy (FAQ)

Is it normal to have aching knees during pregnancy?

Yes, many pregnant people notice aching knees, especially in the second and third trimesters. The joints are carrying more weight, the posture is changing, and hormones make ligaments more elastic. Common does not mean you should ignore it, so mention it at your next appointment.

When should I talk to my doctor or midwife about knee pain?

Mention any aching at your next routine visit. Call sooner if a knee swells suddenly, feels hot or looks red, if one whole leg swells more than the other, if pain is severe, or if the knee gives way. Your maternity team would rather hear about it early.

Who should be extra careful with movement during pregnancy?

Anyone with a complication such as bleeding, placenta previa, high blood pressure, or a history of preterm labor should follow their doctor's guidance before moving in new ways. If you feel dizzy, short of breath, or unwell during any movement, stop and rest. When in doubt, ask first.

How long until aching knees feel better?

Many people feel a little relief the same day they start changing positions more often and resting on their side. The deeper cause, the pregnancy itself, keeps evolving until birth, so expect good days and heavier days. Most knee aching settles in the months after delivery.

How is gentle awareness work different from prenatal yoga?

Prenatal yoga works through held poses, breath, and stretch. Awareness based lessons like Feldenkrais use very small, slow movements to change how your hips, knees, and feet share the work of carrying you. They are different mechanisms, and some people enjoy both.

Is the Feldenkrais Method safe during pregnancy?

The movements are small, slow, and done within comfort, and you can adapt any position, for example resting on your side instead of your back. Even so, pregnancy is individual. Ask your doctor or midwife first, skip anything that feels off, and stop if you notice pain or dizziness.

Will my knees stop aching after the baby comes?

For most people, yes, gradually. Ligaments regain their usual firmness over the months after birth, and the extra load eases. If aching continues well beyond that, or gets worse, ask your doctor about a check, since new parents kneel and carry far more than they expect.