Why Am I Constipated During Pregnancy?
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Medically reviewed by
Baby Circle Medical Board
Reviewed on 18 July 2026
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Hormones and iron slow the bowelEvidence-based & doctor-reviewed
Constipation is very common. Progesterone slows the bowel, iron supplements can worsen it, and the growing uterus presses on the intestines. Fibre, fluids and movement usually help.
Why it happens
Progesterone relaxes the bowel muscles, iron tablets can harden stools, and the growing uterus presses on the intestines.
How to relieve it
- Eat plenty of fibre — fruit, vegetables, wholegrains, dal.
- Drink lots of water.
- Stay active with regular walks.
- Do not ignore the urge; ask your doctor about a safe stool softener or adjusting your iron.
When to see a doctor
Get checked for severe pain, no bowel movement for several days with vomiting, or bleeding (which may be from straining or haemorrhoids).
Frequently asked questions
Can iron tablets cause constipation?
Yes — iron is a common cause. Your doctor can adjust the dose or formulation.
Are laxatives safe?
Some bulk-forming or gentle laxatives are used in pregnancy, but check with your doctor first.
How much fibre and water do I need?
Aim for plenty of fibre-rich foods and about 8–12 cups of fluids a day.
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Join The Circle40-Week GuideReferences
- WHO. Antenatal care recommendations. who.int
- ACOG. Pregnancy resources. acog.org
- NHS. Pregnancy guide. nhs.uk
- CDC. During Pregnancy. cdc.gov
- Office on Women's Health (US). womenshealth.gov
Related reading
Why Do I Feel Bloated?How Much Water in Pregnancy?Top 25 Iron-Rich Foods for Pregnancy📖 40-Week Pregnancy Guide
Medical disclaimer: This article is for general education only and is not a substitute for professional medical advice. Always consult your doctor about your pregnancy and health, and seek care immediately for any warning signs. Reviewed by the Baby Circle Medical Board.