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Pregnancy Swelling at 31 Weeks Pregnant | Pregnancy Power Hour
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Week 31 symptom · manageable

Pregnancy Swelling at 31 Weeks Pregnant

At 31 weeks pregnant, mild swelling in your ankles and feet is a common and often normal physiological change as your blood volume peaks.

2 min read

Quick answer

At 31 weeks pregnant, mild swelling in your ankles and feet is a common and often normal physiological change as your blood volume peaks.

Also called: edema

As you navigate week 31 of your pregnancy, noticing some mild swelling, particularly in your ankles and feet, is a very common and often normal part of your body's incredible work. This physiological edema affects roughly 80% of pregnancies, driven by the significant increase in your blood volume, which can be up to 50% higher than before pregnancy, alongside increased venous pressure. Your body is truly a marvel, supporting the growth of your baby, and these changes are a testament to that effort.

This type of swelling, often more noticeable by the end of the day or after prolonged standing, is typically a benign symptom of your body adjusting to the demands of late pregnancy. It's a gentle reminder to pause and give your body the support it needs. Just as your body adapts in the first trimester, perhaps experiencing Pregnancy Acne at 10 Weeks Pregnant or navigating changes around Pregnancy Acne at 12 Weeks Pregnant, these later changes are also part of the process. Understanding what’s happening can bring a sense of calm and clarity, helping you make informed decisions about your comfort.

While mild swelling is expected, it's always helpful to be aware of what to look for and when to reach out to your care provider. My role as a trained full spectrum doula is to offer you evidence-based education and practical wellness guidance, helping you feel more confident in your choices. We can explore options that support your comfort, such as elevating your legs or considering compression stockings, which research from Cochrane suggests can be quite helpful. These are not 'fixes' but rather gentle ways to ease common discomforts.

Maintaining adequate hydration, for instance, might seem counterintuitive when you're experiencing fluid retention, but it paradoxically helps your body manage fluid balance more effectively. Similarly, being mindful of excessive sodium intake, rather than eliminating it entirely, can also play a role. These small, doable shifts can make a difference in how you feel day-to-day. Remember, your experience is unique, and while some changes are universal, like those that might have caused Pregnancy Acne at 14 Weeks Pregnant, how you respond to them is always personal. You get to decide what feels right for you, always in collaboration with your medical care provider, who is your best resource for your specific situation.

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Common questions

Why am I experiencing swelling at 31 weeks?+

At 31 weeks, swelling is often due to your body's blood volume increasing by up to 50% and increased venous pressure, a common physiological change in pregnancy.

Can compression stockings help with pregnancy swelling?+

Yes, research suggests compression stockings can help reduce both edema and the risk of DVT, offering support for your circulation.

Brittany Nance

“Pregnancy is under-supported at every week. This is the kind of clear, calm guidance I give my one-on-one clients — and the questions worth taking back to your provider.”

Brittany Nance · Pregnancy Wellness Consultant · full-spectrum doula

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Written by Brittany Nance, Pregnancy Wellness Consultant· BADT Full Spectrum Doula · Founder, Pregnancy Power Hour
Last reviewed July 1, 2026

This is evidence-informed education from a birth-doula perspective, not medical advice. Always discuss your individual situation with your prenatal care provider.

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