# Morning Sickness in the third trimester

Source: https://www.pregnancypowerhour.com/trimester-conditions/morning-sickness-in-third-trimester
Last updated: 2026-07-15

> New or returning nausea and vomiting in the third trimester is uncommon and always warrants a conversation with your care provider to rule out underlying health changes.

Experiencing nausea and vomiting, often referred to as 'morning sickness,' is a hallmark for many in the first trimester. However, if these symptoms make a reappearance, or show up for the first time, in your third trimester (weeks 28-40), it's a signal to pause and connect with your care team.

## Why it shows up this trimester

Unlike early pregnancy where hormonal surges are often the primary driver of nausea, new or worsening nausea and vomiting in late pregnancy is less commonly attributed to typical 'morning sickness.' Instead, it can sometimes be a symptom of other conditions that need attention. Your body is working incredibly hard in these final weeks, and while some general discomfort can arise, persistent or severe nausea and vomiting is not usually a 'normal' part of late pregnancy.

## What it tends to feel like now

If nausea returns in the third trimester, it might feel different from your earlier experiences. It could be more intense, or it might be accompanied by other symptoms that weren't present before. You might notice it alongside a headache, changes in your vision, sudden swelling, or pain in your upper abdomen. These accompanying sensations are important clues for your care provider to understand what might be happening.

## What helps in this window

Because the underlying cause of third-trimester nausea is often different from first-trimester morning sickness, the typical remedies might not be as effective. The most important 'help' in this window is open communication with your care provider. While you await their guidance, focusing on gentle, frequent sips of water or clear fluids can support hydration. Small, bland meals, if you can tolerate them, might also be an option. Resting when you feel the urge can also offer some ease. Remember, these are supportive measures, not solutions for an underlying condition.

## Working with your care team

If you experience new or returning nausea and vomiting in your third trimester, reaching out to your OB or midwife is a priority. They are your best resource for understanding your specific situation. They can assess your symptoms, consider other factors, and determine if further investigation is needed. Conditions like preeclampsia, HELLP syndrome, or other late-pregnancy complications can sometimes present with nausea and vomiting, making timely medical evaluation crucial. Your care provider can offer clarity and guide you toward the best course of action for your health and your baby's well-being. This information is for educational purposes and not a substitute for medical advice from your provider.