With nappy changes on the horizon, you’re going to have to get really comfortable with No. 2 talk soon. So, why not start now with a common—but unwelcome—pregnancy symptom: constipation.

Constipation affects 11% to 40% of pregnant people, with the highest rates reported in the second and third trimesters. It can be uncomfortable and sometimes even painful, but there are safe, effective strategies to get things moving again. Here’s what causes constipation during pregnancy, and what evidence-based steps can help you find relief.

What Causes Constipation in Pregnancy

There are a host of body changes that create the perfect storm that is pregnancy constipation. Causes of pregnancy constipation include:

  • Hormonal changes: Progesterone levels rise during pregnancy to relax smooth muscle and support the womb. This same effect also slows the muscle contractions in your intestines, meaning food moves more slowly through your digestive system.
  • Physical pressure: As the uterus grows, it can compress the intestines and rectum, making it more difficult for poo to pass.
  • Dietary and lifestyle factors: Lower activity levels, dehydration, and changes in diet can slow digestion. Iron supplements—important for preventing anaemia—can also harden stools.

Pregnancy Constipation Symptoms

Constipation is one of those ailments that you kind of know if you’ve got it. But what’s the line between being a bit backed up and officially constipated? Constipation is typically defined as having fewer than three bowel movements per week, often accompanied by:

If these symptoms are severe, persistent, or accompanied by bleeding, contact your doctor or midwife right away!

How to Relieve Pregnancy Constipation

As far as uncomfortable pregnancy symptoms go, constipation does have a fairly clear path to relief. There are a few reliable ways to get your gut moving again:

  • Increase fibre intake gradually. Aim for about 25 grams per day from fruit, vegetables, whole grains, legumes, nuts, and seeds. Increase slowly to avoid wind or bloating.
  • Drink plenty of fluids. Hydration is extra important during pregnancy (you are drinking for two after all!). Along with all of water’s other benefits, adequate fluid intake helps fibre work effectively to soften stools. Aim for about 8 to 12 cups a day, but have more on hot days or when you’re active.
  • Stay active. Moderate activity—such as walking, swimming, or prenatal yoga—stimulates digestion. Experts recommend 150 minutes of moderate-intensity exercise per week during pregnancy, as long as it feels comfortable.
  • Practice good loo habits. Go as soon as you feel the urge, and try sitting on the toilet about 15 to 20 minutes after meals to take advantage of your body’s natural gastrocolic reflex. Another tool: a stool! Placing a small footstool at the base of your toilet will raise your knees above hip level, which is an ideal poo position. Lean forward, relax your tummy muscles, and (hopefully) let it go!
  • Consider fibre supplements. If dietary fibre isn’t enough, bulk-forming supplements such as psyllium or methylcellulose can be helpful and are generally safe during pregnancy.
  • Use stool softeners if needed. Docusate sodium is minimally absorbed and generally considered safe during pregnancy for short-term use (but always chat with your healthcare provider before starting new medication during pregnancy!).
  • Try laxatives as a last resort. If nothing else is working, osmotic laxatives (like polyethylene glycol, often sold as Movicol) or stimulant laxatives (like senna) can be used short-term. But avoid using mineral oil—it can interfere with nutrient absorption.

Final Thoughts

Constipation in pregnancy is common, but with the right mix of dietary tweaks, hydration, gentle activity, and, if necessary, safe medication, you can nudge your bowels back into gear. Work with your healthcare provider to find the best plan for you!

Disclaimer: The information on our site is NOT medical advice for any specific person or condition. It is only meant as general information. If you have any medical questions and concerns about your child or yourself, please contact your health provider. Breastmilk is the best source of nutrition for babies. It is important that, in preparation for and during breastfeeding, mothers eat a healthy, balanced diet. Combined breast- and bottle-feeding in the first weeks of life may reduce the supply of a mother's breastmilk and reversing the decision not to breastfeed is difficult. If you do decide to use infant formula, you should follow instructions carefully.