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Health condition · Clinically reviewed

Ectopic pregnancy, a medical emergency with a defined pathway.

A pregnancy outside the uterus — usually in the fallopian tube. Prompt diagnosis with transvaginal ultrasound and hCG trend; management is expectant, medical (methotrexate) or surgical.

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Why trust this guide

  • 01

    Clinically reviewed

    Written by our editorial team and reviewed by a registered UK clinician before publication.

  • 02

    Sourced from guidance

    Every claim is checked against NICE, RCOG or peer-reviewed sources you can see at the end.

  • 03

    Current for 2026

    Reflects current UK guidance on early pregnancy assessment, hCG interpretation and surgical care.

Key facts

Ectopic pregnancy at a glance.

The essentials, in plain English — what it is, where it happens, how it is diagnosed, and how it is treated in the UK today.

  • What it is

    A pregnancy that implants outside the endometrial cavity — most often in a fallopian tube.

  • Where it happens

    Most commonly tubal (around 95%) — occasionally ovarian, cervical, caesarean-scar or abdominal.

  • How common

    In the UK, around 1 in 90 pregnancies is ectopic.

  • Diagnosis

    Pregnancy test, transvaginal ultrasound and serial serum hCG measurements 48 hours apart.

  • Management

    Expectant monitoring, medical treatment with methotrexate, or laparoscopic salpingectomy or salpingostomy.

  • Why it matters

    Ectopic pregnancy remains a leading cause of first-trimester maternal death — early diagnosis saves lives.

Why this guide matters

Answers that shorten the wait.

Ectopic pregnancy still causes preventable deaths. The three points below shape everything else on this page.

  • Early pregnancy pain is never “just cramps”

    Any one-sided pelvic pain with a positive test needs a scan — not a wait-and-see.

  • Ultrasound and hCG work together

    One scan or one blood test is rarely enough. The trend over 48 hours makes the diagnosis.

  • Collapse means 999

    Shoulder-tip pain, fainting or a rigid abdomen — treat as a surgical emergency.

How the diagnosis is made

From first symptoms to a clear plan.

The steps an early pregnancy assessment unit will normally follow, in order — so you know what to expect and why.

  1. 01

    Recognising

    Positive pregnancy test

    A urinary pregnancy test confirms pregnancy — the starting point for any early-pregnancy pain or bleeding assessment.

  2. 02

    Recognising

    Serum hCG

    A blood test quantifies the pregnancy hormone and sets a baseline for tracking.

  3. 03

    Confirming

    Transvaginal ultrasound

    The definitive first-line scan — looks for an intrauterine pregnancy and any adnexal mass or free fluid.

  4. 04

    Confirming

    Serial hCG (48-hour trend)

    When the scan is inconclusive, a repeat hCG at 48 hours helps distinguish a viable pregnancy from an ectopic or failing one.

  5. 05

    Confirming

    Rule out heterotopic pregnancy in IVF

    After assisted conception, an intrauterine pregnancy does not exclude a coexisting ectopic — the adnexae are checked carefully.

  6. 06

    Managing

    Consider surgical review

    Where imaging or hCG trend suggests ectopic, the gynaecology team decides between medical and surgical treatment.

  7. 07

    Managing

    Emergency A&E referral

    Any sign of haemodynamic instability — dizziness, fainting, severe pain — needs immediate emergency assessment.

Typical timeline: hours to a few days from first presentation to a treatment decision.

Symptoms

What an ectopic pregnancy can look like.

Symptoms are not always dramatic. A quiet ectopic can present as light bleeding and a niggling pain — take any early pregnancy pain seriously.

  • Unilateral pelvic pain

    One-sided lower abdominal or pelvic pain in early pregnancy — the classic warning sign.

  • Vaginal bleeding

    Light or dark bleeding, often different from a normal period, in the first trimester.

  • Dizziness or syncope

    Light-headedness or fainting suggests bleeding into the abdomen — an emergency.

  • Shoulder-tip pain

    Referred pain from blood irritating the diaphragm — a red-flag feature of tubal rupture.

  • Positive test, uncertain dates

    A positive pregnancy test with an unclear last menstrual period deserves an early scan.

  • IVF or assisted conception

    Assisted conception raises the risk of ectopic and of heterotopic pregnancy.

  • Prior ectopic or tubal surgery

    Previous ectopic, tubal surgery or pelvic infection increases the risk this pregnancy is ectopic.

  • Red flag: haemodynamic collapse

    Severe pain with fainting, pallor or shock — call 999 immediately.

Treatment

How ectopic pregnancy is treated in the UK.

A staged decision — expectant, medical or surgical — matched to how stable you are, your hCG trend and your future fertility wishes.

  • Expectant management

    Watchful waiting with serial hCG in carefully selected women — low, falling hCG and no symptoms.

  • Methotrexate

    Single or multi-dose intramuscular treatment that stops trophoblast growth — used when hCG is low and the patient is stable.

  • Laparoscopic salpingectomy

    Keyhole removal of the affected fallopian tube — the standard where the other tube is healthy.

  • Laparoscopic salpingostomy

    Tube-conserving surgery — considered when the other tube is damaged and future fertility matters.

  • Anti-D immunoglobulin

    Given to Rhesus-negative women after surgical or medical treatment to prevent sensitisation.

  • Contraception planning

    Reliable contraception after methotrexate for at least 3 months while the drug clears.

  • Fertility counselling

    A conversation about the chance of future pregnancy and the small risk of recurrence.

  • Bereavement support

    Loss of a pregnancy is a bereavement — specialist support from midwives, GPs and charities matters.

What this guide is based on

The sources behind every claim on this page.

UK national guidance and specialist society standards, current at the time of last review.

Key references

Guidelines and standards we relied on.

A quiet reminder

This guide is for information, not medical advice.

Your GP or gynaecologist knows your history and can tell you which parts apply to you. If in doubt, seek assessment — especially with any red-flag features.

  • NICE. Ectopic pregnancy and miscarriage: diagnosis and initial management (NG126).

  • Royal College of Obstetricians and Gynaecologists (RCOG). Green-top and patient guidance on ectopic pregnancy.

  • The Ectopic Pregnancy Trust. Patient information and support.

  • European Society of Human Reproduction and Embryology (ESHRE). Guidance on early pregnancy complications.

Red flags

When ectopic pregnancy becomes an emergency.

These are the patterns that need urgent assessment or emergency care — do not delay.

  • Haemodynamic collapse

    Severe pain with fainting, pallor, low blood pressure or a fast pulse — call 999 for suspected tubal rupture.

  • Peritonism

    A rigid, exquisitely tender abdomen suggests a perforated ectopic — emergency surgical assessment.

  • Failed methotrexate treatment

    Rising or plateauing hCG, worsening pain or new bleeding after methotrexate — same-day gynaecology review.

  • Recurrent ectopic

    A second ectopic pregnancy raises questions about tubal disease and future fertility that need specialist input.

  • Post-op complications

    New fever, worsening pain, heavy bleeding or wound problems after surgery — contact the team the same day.

  • Heterotopic pregnancy

    After IVF, an intrauterine pregnancy does not exclude a second ectopic — persistent pain must be re-scanned.

  • Depression or PTSD after loss

    Low mood, intrusive thoughts or flashbacks after an ectopic — early support and counselling help recovery.

  • Rhesus sensitisation

    Any Rhesus-negative woman with an ectopic must receive Anti-D to protect future pregnancies.

  • Future fertility concerns

    Time to try again, choice of contraception and IVF questions — plan these calmly with your team.

Living with it

After treatment, recovery in body and mind.

Four things that make the biggest difference in the weeks and months after an ectopic — recovery, mental health, fertility and follow-up.

A quiet reminder

Grief is part of getting better.

An ectopic pregnancy is a pregnancy loss. Give yourself permission to grieve, and ask for support early.

  1. 01 Recovery

    Give yourself time to heal

    Physical recovery after surgery or methotrexate takes weeks — rest, hydration and gradual return to activity.

  2. 02 Mental health

    Grief is expected

    An ectopic pregnancy is a pregnancy loss. Support from the Ectopic Pregnancy Trust or a counsellor helps.

  3. 03 Fertility

    Most people conceive again

    The majority of people who have had an ectopic go on to have a healthy pregnancy — planning early scans is reassuring.

  4. 04 Follow-up

    Attend all hCG checks

    Weekly hCG tests after methotrexate or conservative surgery confirm the pregnancy has fully resolved.

Frequently asked

Everything we get asked about ectopic pregnancy.

Quick answers on diagnosis, hCG monitoring, methotrexate, surgery, Anti-D and future fertility.

  • What is an ectopic pregnancy?

    A pregnancy that implants outside the endometrial cavity of the uterus — most often in a fallopian tube. It cannot progress safely and always needs treatment.

  • How is an ectopic pregnancy diagnosed?

    By a combination of a positive pregnancy test, a transvaginal ultrasound scan and serial serum hCG measurements 48 hours apart. Sometimes surgery is needed to confirm the diagnosis.

  • What are the treatment options?

    Expectant management (watchful waiting) in carefully selected women, methotrexate injection, or laparoscopic surgery — usually salpingectomy (removal of the tube) or occasionally salpingostomy (tube-preserving).

  • Will I be able to have children after an ectopic pregnancy?

    Most people who have had an ectopic pregnancy go on to have a healthy future pregnancy. The risk of a further ectopic is a little higher, so early scans are usually offered.

  • Why do I need Anti-D?

    If you are Rhesus-negative, Anti-D immunoglobulin protects future pregnancies by preventing your immune system from producing antibodies to Rhesus-positive blood.

  • When should I seek urgent care?

    Severe one-sided pelvic pain, heavy vaginal bleeding, shoulder-tip pain, dizziness or fainting in early pregnancy — call 999 or attend A&E immediately.

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