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Trimester 3 · week 28 of 40

28 weeks pregnant

Welcome to the third trimester. The baby keeps maturing the brain, lungs and senses, while prenatal care moves into a phase of more frequent monitoring.

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 28: a large eggplant
Visual reference: a large eggplant. Not an individual clinical measurement.
Quick read

In 1 minute

  • The eyelids can now open and close.
  • The baby responds to sounds and changes in light.
  • In Brazil, the RSV vaccine is recommended from week 28 in every pregnancy as of 2026.
Fetal development

How your baby is doing this week

The eyes perceive changes in light and the nervous system keeps maturing. The lungs produce increasing amounts of surfactant. More fat under the skin gradually softens the look of the body.

3D artistic representation of fetal development at week 28
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

The weight of the bump can increase shortness of breath on exertion, heartburn, lower back pain and trouble sleeping. Nosebleeds can also happen because of hormonal and blood vessel changes.

Possible steps

Care for this week

  1. Talk to your care team about the RSV vaccine and confirm whether you have already had the Tdap (dTpa) vaccine.

  2. Start paying closer attention to the baby's usual movement pattern, as advised by your prenatal care team.

  3. Plan breaks, sleep and ergonomics for the final stretch.

Prenatal care focus

  • In low-risk prenatal care, appointments are usually every two weeks from week 28 to week 36.
  • Brazil's 2026 national vaccination schedule recommends the RSV vaccine from week 28 in every pregnancy.
Twin pregnancy

If you're expecting twins

With twins, this final phase usually brings even closer monitoring of growth, blood pressure, anemia and signs of preterm birth.

Support network

For those by your side

Help keep vaccinations, tests and appointments organized in one place — it can be right in Nilu.

Common questions

Questions for this week

Do I need to count movements every day?

Follow the method recommended by your care team. The key is to recognize the usual pattern and seek care if you notice a decrease.

Are nosebleeds dangerous?

They can happen in pregnancy, but heavy, recurring or hard-to-control bleeding should be checked.

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 29

The next chapter

In week 29, the baby gains more fat and strength, and the pregnant woman starts to feel that every centimeter of space counts.

See week 29

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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.