Side pain during pregnancy can be uncomfortable and worrying, especially if it comes on suddenly or affects your sleep and movement. Fortunately, it is often due to changes that are natural for the body. Here you will find practical guidance to understand the pain, try gentle relief, and know when to contact your midwife or doctor.

Pain in the side can originate from several places. A common explanation is that the uterus is growing, and that muscles and ligaments in the abdomen and pelvis are stretching. This can cause sharp pains or tenderness in the side, especially when changing position, coughing, or during prolonged activity.

The pain can also stem from the back and pelvis, where posture gradually changes and the load shifts. Some also experience discomfort that can resemble "side pain," but which actually comes from tension in the lower back, hip, or gluteal region.

Where the pain is located can provide a clue but is rarely enough to provide a definite "explanation" alone.

If the pain worsens when you get up, turn over in bed, go up stairs, or take long strides, it may indicate a muscle or joint-related cause around the pelvis and back. Here, adjusting movement patterns and finding more supportive resting positions often helps.

Contact a healthcare professional if the pain is new and significantly different for you, or if it is accompanied by other symptoms (see the section on warning signs). It is always okay to call your midwife or doctor to have it assessed if a check-up is needed.

Pelvic-related pain can be experienced as tenderness or sharp pains that radiate to the side, groin, or down into the thigh. Many describe that the discomfort is worsened by one-sided loads such as standing on one leg, carrying heavy objects on the hip, vacuuming, or walking quickly with long strides.

Practically, you can often find more relief by:

• Taking shorter steps and keeping knees and feet pointing in the same direction when turning.
• Distributing load to avoid standing on one leg for too long (e.g., when putting on shoes).
• Varying between activity and breaks before the pain builds up.

If the pain affects your daily life, a physical therapist with experience in pregnancy can help with exercises and relief that suits your specific situation.

The goal is often to relieve pressure, create better support, and reduce the movements that trigger the pain.

Many find relief by lying on their side with support between their knees and possibly a pillow under their stomach, so the body does not "hang" in the lower back and pelvis. During the day, short breaks where you lie down or sit with good lumbar support can make a difference.

Calm, steady movement can be better for some than sudden stops and strenuous activity. Try to slow down, avoid twisting your upper body, and break tasks into smaller parts. Stop if an exercise or movement clearly worsens the pain.

Seek medical attention or an urgent assessment if you have side pain and also experience one or more of the following:

• Fever, chills, or an affected general condition
• Pain during urination, frequent urination, or suspicion of a urinary tract infection
• Bleeding, fluid discharge, or regular labor-like pain
• Sudden, severe, and increasing pain that is not relieved by rest
• Severe headache, visual disturbances, or pronounced swelling (that you are concerned about)

If you are in doubt, it is a good idea to contact your midwife, doctor, or maternity ward for a specific assessment.

If your pain is related to strain in your back and pelvis, extra support in everyday life may be relevant. A support belt can provide relief for some when walking and performing standing activities, making it easier to take "preventative" breaks rather than waiting until the pain takes over. See, for example, Support belts and a specific example like the Maternity Support Belt. Use it as a supplement to good movement habits, and seek guidance if you are unsure about fit and use.