Bleeding During Pregnancy: Causes & When to Worry
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Medically reviewed by
Baby Circle Medical Board
Reviewed on 18 July 2026
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Always report bleeding — heavy bleeding is an emergencyEvidence-based & doctor-reviewed
Any bleeding in pregnancy should be reported to your doctor. Light spotting is often harmless — from implantation or a sensitive cervix — but bleeding can also signal a problem, and heavy bleeding, especially with pain, is a medical emergency.
Possible causes by stage
- Early: implantation, cervical changes, miscarriage, or ectopic pregnancy.
- Later: placental problems (praevia or abruption), or a sign of labour near term.
When to seek urgent care
Go to hospital immediately for heavy bleeding, bleeding with severe or one-sided pain, dizziness or fainting, or bleeding with contractions. Report any bleeding, even light, to your doctor.
Frequently asked questions
Is bleeding always serious?
No — light spotting is often harmless, but all bleeding should be checked to be safe.
When is bleeding an emergency?
Heavy bleeding, or bleeding with severe pain, dizziness or contractions — seek care now.
What should I do if I bleed?
Use a pad (not a tampon), note the amount and colour, and contact your doctor promptly.
Your pregnancy, week by week 💜
Doctor-reviewed guidance for every stage in the complete 40-week guide.
40-Week GuideJoin The CircleRelated reading
Is Spotting Normal in Pregnancy?Miscarriage: Signs, Causes & SupportEctopic Pregnancy: Symptoms & Warning Signs📖 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 seek care immediately for any warning signs. Reviewed by the Baby Circle Medical Board.