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Week 28 of Pregnancy | Pregnancy Power Hour
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Pregnancy · Trimester 3

Week 28 of Pregnancy

Welcome to the third trimester! This week marks a new phase of growth for your baby and an important window for the Tdap vaccine.

2 min read

Quick answer

Welcome to the third trimester! This week marks a new phase of growth for your baby and an important window for the Tdap vaccine.

On this page
  1. What's happening with baby
  2. What you might be feeling
  3. A doula's lived take
  4. Questions worth asking your provider
← Week 27Week 28 of 40Week 29 →

Welcome to week 28! This is a significant milestone, as you're officially entering the third trimester of your pregnancy. It's a time when many parents-to-be start to shift their focus more intently towards birth preparation and meeting their baby.

What's happening with baby

Around week 28, your baby is continuing to grow rapidly, now roughly the size of an eggplant. Their brain is developing at an incredible pace, forming billions of neurons. Their eyes are also maturing, and they can now open and close them, even detecting light changes from outside your womb. Fat layers are continuing to build beneath their skin, helping them regulate body temperature after birth. You might also notice more distinct movement patterns as they practice breathing motions and refine their reflexes, getting ready for the world outside.

What you might be feeling

As your baby grows, you might notice an increase in physical sensations. Fatigue can return, sometimes even more intensely than in the first trimester, as your body works hard to support your growing baby. Braxton Hicks contractions might become more frequent, which are your uterus practicing for labor. You might also experience some new aches and pains as your ligaments soften and your center of gravity shifts. Emotionally, it's common to feel a mix of excitement, anticipation, and perhaps some nerves about labor and parenthood. Nesting instincts might kick in, prompting you to organize and prepare your home.

A doula's lived take

Entering the third trimester can feel like a big step. From my experience as a doula, I've seen that this is often when the practicalities of birth and postpartum really start to sink in. It's a wonderful time to lean into curiosity and gather information. You might find yourself thinking more about your birth preferences, or what kind of support feels right for you. Remember, you get to decide what feels best for your body and your family. One option might be to start exploring different comfort measures for labor or discussing your wishes with your birth partner. This period is less about 'doing' and more about 'preparing' – creating a calm, clear, and confident mindset for what's ahead. It's also a common time for the Tdap vaccine, which offers protection for your baby after birth. Your provider is your best resource for discussing the timing and benefits for your specific situation.

Questions worth asking your provider

As you move through the third trimester, having open conversations with your care team is key. Here are a few questions you might consider asking:

  • What are the recommendations for the Tdap vaccine, and when is the best time for me to receive it?
  • What signs should I be looking for that might indicate preterm labor?
  • What resources do you recommend for birth preparation classes or infant care information?
  • How can I best manage common third-trimester discomforts like back pain or swelling?
  • What is the process for discussing my birth preferences and creating a birth plan?

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Baby is about the size of an eggplant.

Common questions

Why is the Tdap vaccine recommended during pregnancy?+

The Tdap vaccine helps protect your baby from whooping cough (pertussis) after birth. Antibodies you develop are passed to your baby, offering them early protection before they can receive their own vaccines. Your provider can guide you on timing.

What are Braxton Hicks contractions?+

Braxton Hicks are practice contractions, where your uterus tightens and relaxes. They are typically irregular, not painful, and don't cause cervical change. Staying hydrated and changing positions can often help them subside.

Is it normal to feel more tired again?+

Yes, many pregnant individuals experience renewed fatigue in the third trimester. Your body is working hard to grow your baby and prepare for birth. Prioritizing rest and listening to your body's cues is a gentle, practical approach.

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.

On this page

  1. What's happening with baby
  2. What you might be feeling
  3. A doula's lived take
  4. Questions worth asking your provider

Keep reading

  • RelatedWeek 29 of PregnancyEntering the third trimester, your baby's growth is accelerating, and daily kick counts become a gentle, reassuring practice to connect with your little one.
  • RelatedWeek 27 of PregnancyWeek 27 marks the close of your second trimester, a time for your baby's continued growth and your body's gentle preparation for the weeks ahead.
  • RelatedPregnancy Brain at 28 Weeks PregnantAt 28 weeks, 'pregnancy brain' is a common experience, reflecting real cognitive shifts and often compounded by third-trimester sleep disruption.
  • RelatedPregnancy Fatigue at 28 Weeks PregnantAt 28 weeks pregnant, a return of profound fatigue is common, often compounded by sleep changes, the growing physical load, and increased iron demands.
  • RelatedShortness of Breath at 28 Weeks PregnantAt 28 weeks pregnant, shortness of breath is often a manageable symptom as your growing baby begins to crowd your diaphragm, though it typically eases later on.
  • RelatedFood Cravings at 28 Weeks PregnantAt 28 weeks, food cravings are a common, mild symptom that can vary in intensity as you navigate the third trimester.