Pelvic discomfort in the third trimester can feel like pressure, pulling, period-like aches, or short sharp pains. For many, this is related to the uterus being large, the baby taking up more space, and the joints and muscles of the pelvis being affected. At the same time, it is important to know the signs that should be assessed by a midwife, doctor, or maternity ward, so you don't have to deal with the uncertainty alone.

Discomfort can arise when the uterus grows and pulls on ligaments and tissues around it. You may also feel more downward pressure because the baby is lower in the pelvis, or because you have been on your feet a lot. Some experience discomfort along with Braxton Hicks contractions (irregular contractions), which can feel like a tightening and subsequent soreness.

It can be short-lived, occur with a change of position, subside with rest, or be most pronounced at the end of the day. If you are unsure about the pattern, you can note the time, duration, and what alleviates it, so you can better describe it at your next appointment.

Braxton Hicks contractions are often irregular, can vary in strength, and typically subside with rest, fluids, and a change of position. Labor contractions often become more regular, increase in strength, and come with shorter breaks.

Try lying on your side, drinking a glass of water, and resting for 20 to 30 minutes. If the sensation subsides, it often indicates Braxton Hicks contractions or strain. If it increases or becomes regular, you should contact the maternity ward for advice.

Contact healthcare professionals if you experience one or more of the following:

• Fresh bleeding or persistent bloody discharge
• Suspicion of water breaking or constant trickling of fluid
• Fever, general feeling of illness, or severe pain
• Persistent strong pain that is not relieved by rest
• Regular pain or tightening that increases
• Significantly reduced fetal movements compared to usual

If you are in doubt, it is relevant to call and get a specific assessment based on your pregnancy and your symptoms.

Focus on gentle relief and support in everyday life:

• Change position often and take breaks with your legs up
• Sleep on your side with a pillow between your knees to relieve pressure on the pelvis
• Use warmth (e.g., a heating pad) on your lower back/hip if it feels good
• Choose gentle movement, e.g., short walks, if it helps

• "Gritting your teeth" if the pain becomes severe or changes character
• Heavy lifting and movements that provoke the pelvis or groin
• Pushing through repeated tightenings without seeking advice

If your discomfort is related to a feeling of heaviness, pelvic strain, or soreness in the lower back and pelvis, extra support during the day may be relevant. A support belt can relieve some women during activity by supporting the abdominal wall and lower back. You can see Support Belts and a specific choice like the Maternity Support Belt.

The goal is not to "fix" a cause, but to give you more peace and comfort in everyday life, while still keeping an eye on symptoms that require assessment.

• Sundhed.dk, Patienthåndbogen: Pelvic complaints in pregnancy: https://www.sundhed.dk/borger/patienthaandbogen/graviditet/graviditetsgener/underlivsgener-i-graviditeten/
• Cleveland Clinic: Third Trimester Overview: https://my.clevelandclinic.org/health/articles/third-trimester
• Healthline: Third Trimester Pain and Insomnia: https://www.healthline.com/health/pregnancy/third-trimester-pain-insomnia