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Trimester 3 · week 34 of 40

34 weeks pregnant

The baby looks more and more like a newborn, but is still making the most of every week to mature the lungs, brain and temperature control.

Translated from the original Brazilian Portuguese content with the help of artificial intelligence. Read the original in Portuguese

Read about your current week or get ready for what comes next.
Visual size comparison at week 34: a cantaloupe melon
Visual reference: a cantaloupe melon. Not an individual clinical measurement.
Quick read

In 1 minute

  • Body fat keeps increasing.
  • The lungs keep maturing.
  • Movements remain important even with less room.
Fetal development

How your baby is doing this week

The baby is growing and building up fat reserves. The respiratory system keeps maturing, as do the brain and nervous system. The tighter space changes the shape of movements, but they are still there.

3D artistic representation of fetal development at week 34
Artistic 3D representation. This is not an ultrasound and does not represent your baby's individual development.
Body and routine

What may change in your body

You may feel more pressure in the pelvis, heartburn, the need to pee and trouble sleeping. Some people notice swollen hands or feet at the end of the day.

Possible steps

Care for this week

  1. Keep getting to know the movement pattern.

  2. Review the maternity hospital's contacts and the criteria your care team has set for seeking care.

  3. Use compression stockings or other measures for swelling only as advised, when needed.

Prenatal care focus

  • The team may review the baby's position, growth, signs of preeclampsia and birth planning.
Twin pregnancy

If you're expecting twins

Depending on the type of twin pregnancy, birth may be planned before the term of a single pregnancy; this should be individualized by the obstetric team.

Support network

For those by your side

Have the logistics ready without creating a constant state of emergency: documents, route, contacts and support.

Common questions

Questions for this week

Is the baby moving less because it's cramped?

Movements change in quality, but a noticeable decrease from the usual pattern needs to be checked.

Is it too early to talk about breastfeeding?

No. This is a great time to learn the basics and set realistic expectations.

When to seek care

  • Once movements have become familiar, a significant decrease in the pattern you notice should be evaluated without waiting until the next day.
  • After 20 weeks, a severe/persistent headache, vision changes, severe pain in the upper abdomen or sudden swelling deserve evaluation for a possible hypertensive condition.
  • Before term, regular contractions, increasing pelvic pressure or signs of labor need prompt advice.

In an emergency, go to the urgent care service in your area. This content does not replace a professional assessment.

Next · week 35

The next chapter

In week 35, the baby keeps gaining weight and the team starts looking more and more closely at position, birth and maternal signs.

See week 35

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Sources and transparency

Nilu editorial content, written from the official sources above. Individual clinical review of each week is in progress — this text is for information and does not replace your prenatal care.