# Pregnancy Constipation in the third trimester

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

> In your third trimester, slow digestion can feel more pronounced as your growing baby places extra pressure on your colon, making bowel movements less frequent and sometimes uncomfortable.

As you navigate your third trimester, you might notice that slow digestion, a common companion throughout pregnancy, feels a bit more pronounced now. It's a mild but often persistent symptom that can add to the general discomfort of late pregnancy. Understanding why it's happening and what gentle approaches might offer relief can bring more clarity and ease to this stage.

## Why it shows up this trimester

Progesterone, the hormone that helps maintain your pregnancy, continues to relax smooth muscles throughout your body, including those in your digestive tract. This relaxation naturally slows down the movement of food through your intestines. However, a significant factor unique to this stage is the sheer size of your growing uterus and baby. As your little one expands, they can begin to place direct pressure on your colon and rectum, making it harder for stool to move through.

Many parents also find that their physical activity naturally decreases in the third trimester, which can further slow down gut motility. If your care provider has recommended iron supplements, which are often prescribed in later pregnancy, these can also contribute to constipation, as iron can be binding for some individuals.

## What it tends to feel like now

You might experience a more persistent feeling of fullness or bloating, even when you haven't eaten much. Straining during bowel movements, or noticing harder, smaller stools, can also be common. Some individuals report less frequent bowel movements than their usual pattern, along with general discomfort or a feeling of incompleteness after using the restroom. This can contribute to a feeling of sluggishness overall.

## What helps in this window

Staying well-hydrated is always key, but it's especially important now. Aim for consistent sips of water throughout the day, and consider incorporating hydrating foods like fruits and broths. Incorporating fiber-rich foods such as whole grains, leafy greens, and legumes can offer gentle support. These foods help to soften stool and add bulk, making it easier to pass.

Gentle, consistent movement, like a daily walk or prenatal yoga (always with your provider's approval), can encourage your digestive system to keep things moving. Some people find that using a small footstool to elevate their knees while on the toilet can create a more optimal angle for bowel movements, easing strain. Allowing yourself ample, unhurried time for bowel movements can also be helpful.

## Working with your care team

It’s always a good idea to discuss any persistent or worsening digestive discomfort with your care provider. They are your best resource for understanding your specific situation and can help rule out any other concerns. They can also review any supplements you're taking, like iron, to see if adjustments might be helpful, or suggest specific over-the-counter options if needed. Remember, you get to decide what feels right for your body. Exploring these options collaboratively with your care team can bring more calm and clarity to your third trimester.