Ectopic pregnancy: symptoms, warning signs and what to do immediately

Pregnancy · 1st trimester · Updated July 2026 · All articles

An ectopic pregnancy is one that implants outside the uterus, most often in a fallopian tube, and it is a serious medical condition that requires urgent care. If you are in early pregnancy and you have sudden sharp pain in your abdomen or pelvis, shoulder tip pain, dizziness or faintness, or you feel very unwell, call 999 immediately. These are signs of a possible rupture and internal bleeding, which is life-threatening. Do not drive yourself to hospital and do not wait to see if symptoms pass.

The symptoms of an ectopic pregnancy are not always dramatic at first. Early signs can be subtle: a dull one-sided ache, light vaginal bleeding that is darker than a normal period, or an uncomfortable feeling in the pelvis. Because these can resemble a miscarriage or early pregnancy changes, it is easy to delay seeking help. If symptoms worsen suddenly at any point, go back to the top of this list: sharp pain, dizziness, shoulder tip pain or feeling very unwell means call 999 now. This article, based on guidance from the NHS, RCOG and the Ectopic Pregnancy Trust, explains everything you need to know.

What is an ectopic pregnancy?

In a typical pregnancy, a fertilised egg travels down the fallopian tube and implants in the lining of the uterus, where it can grow into a baby. In an ectopic pregnancy, the fertilised egg implants somewhere else. Around 98 per cent of ectopic pregnancies occur in a fallopian tube, which is why they are sometimes called tubal pregnancies. Less commonly, implantation happens on the ovary, in the cervix, in the abdominal cavity, or in a previous caesarean scar.

None of these locations can support a growing pregnancy. There is no way to move an ectopic pregnancy to the uterus, and the embryo cannot survive. The danger is that as the embryo grows, it can stretch and eventually rupture the fallopian tube, causing serious internal bleeding. Ectopic pregnancy affects around one in 90 pregnancies in the UK and is the leading cause of pregnancy-related death in the first trimester, according to RCOG. Fast diagnosis and treatment are essential.

Warning signs: when to call 999 immediately

Some symptoms of an ectopic pregnancy require emergency help right away. Call 999 if you have any of the following:

• Sudden, severe or worsening pain in the lower abdomen, pelvis or one side of your tummy
• Shoulder tip pain: a sharp or dull ache felt at the very top of the shoulder where it meets the arm
• Dizziness, feeling faint, or actually fainting
• Feeling very unwell or collapsing
• Pale, clammy skin with a rapid heartbeat

These signs suggest internal bleeding may be occurring. Even if you are not certain you are pregnant, or if the pain comes and goes, do not wait. A ruptured ectopic pregnancy can cause life-threatening haemorrhage within minutes. Call 999 and tell them you may have an ectopic pregnancy.

If symptoms are present but less severe, contact your GP, midwife or Early Pregnancy Unit (EPU) straight away. Do not wait for a routine appointment. The NHS advises that any one-sided pelvic pain in early pregnancy should be assessed urgently.

Early warning signs to watch for

Before a rupture occurs, ectopic pregnancy can produce subtler symptoms that are easy to attribute to a normal early pregnancy or a threatened miscarriage. Knowing them is important because catching an ectopic before rupture gives doctors more treatment options and significantly reduces risk.

Common early signs include:

• One-sided pelvic or abdominal pain: pain is often on the side where the ectopic has implanted, and may be persistent, crampy or come in waves.
• Vaginal bleeding: this is often lighter than a period and may be dark brown or watery. It does not necessarily mean the pregnancy is ending in a miscarriage.
• Shoulder tip pain: even at an early stage, a small amount of internal bleeding can irritate the diaphragm and produce this distinctive ache at the top of the shoulder. See the section below for why this matters so much.
• Bowel or bladder discomfort: some people feel pressure or pain when going to the toilet, caused by the growing pregnancy pressing on nearby structures.
• General feeling of being unwell: nausea, fatigue or a sense that something is not right, even without specific pain.

These symptoms typically appear between four and ten weeks of pregnancy, often before a person even knows they are pregnant. A positive pregnancy test followed by any of these signs is a reason to seek medical review the same day.

Why shoulder tip pain is a key alarm sign

Shoulder tip pain is one of the most misunderstood signs of an ectopic pregnancy, partly because it feels so removed from the abdomen. Many people put it down to sleeping awkwardly or muscle tension, and delay getting help as a result.

Here is what is actually happening: when a fallopian tube bleeds, even a small amount, blood can track upward inside the abdominal cavity until it reaches the diaphragm, the large dome-shaped muscle that sits below the lungs. The diaphragm and the shoulder share the same nerve supply via the phrenic nerve. So when blood irritates the underside of the diaphragm, the brain interprets the pain as coming from the shoulder tip instead. This is known as referred pain.

Shoulder tip pain in early pregnancy is a red flag regardless of how bad it is. You do not need to be in agony for this sign to be serious. Even a mild ache at the top of the shoulder, alongside any other early pregnancy symptoms, means you should seek emergency care immediately. The NHS and the Ectopic Pregnancy Trust both list it as a sign requiring urgent assessment.

Risk factors for ectopic pregnancy

An ectopic pregnancy can happen to anyone, and most people who have one have no identifiable risk factor. However, certain things increase the likelihood:

• Previous ectopic pregnancy: if you have had one ectopic, your risk of another is higher. RCOG advises an early scan in any future pregnancy.
• Pelvic inflammatory disease (PID): infections such as chlamydia can cause scarring inside the fallopian tubes, making it harder for a fertilised egg to pass through.
• Previous surgery on the fallopian tubes: including surgery for a previous ectopic, sterilisation procedures, or investigations such as laparoscopy.
• IVF and fertility treatment: the risk is slightly increased, though IVF pregnancies are monitored with early scans to detect this.
• Intrauterine device (IUD): an IUD does not cause ectopic pregnancy, but if pregnancy occurs while one is in place, it is more likely to be ectopic.
• Smoking: associated with impaired movement of the egg through the fallopian tube.
• Age: risk increases slightly with age, particularly for those over 35.

Having one or more risk factors does not mean an ectopic pregnancy will occur. It does mean that symptoms in early pregnancy should be taken especially seriously and assessed promptly.

Diagnosis and treatment

If your doctor or EPU suspects an ectopic pregnancy, you will usually have a transvaginal ultrasound scan and a blood test to measure levels of the pregnancy hormone hCG. Sometimes a single blood test is not conclusive, and you may need repeat tests over 48 hours to see how hCG levels are changing. A normally progressing pregnancy shows rapidly rising hCG; a slower rise or falling levels can indicate a problem.

Once an ectopic is confirmed, treatment depends on how far along the pregnancy is, how stable you are, and whether the tube has ruptured.

• Surgery (laparoscopy): the most common treatment. A surgeon makes a small incision and removes the ectopic pregnancy, sometimes preserving the fallopian tube and sometimes removing it depending on how much damage has occurred. This is always used in an emergency rupture.
• Methotrexate injection: a medication that stops the pregnancy growing and allows the body to absorb it over several weeks. It is only suitable when the ectopic is detected early, hCG levels are below a certain threshold, and there are no signs of rupture. Follow-up blood tests are needed to confirm it has worked.
• Expectant management: in rare cases where hCG levels are very low and falling, close monitoring without active treatment may be an option. This requires careful follow-up.

Your care team will explain which option is most appropriate for your situation and what to expect during recovery.

Emotional recovery after an ectopic pregnancy

An ectopic pregnancy involves both physical trauma and grief. You have lost a pregnancy and may have faced a frightening, fast-moving medical experience. It is completely normal to feel shock, sadness, anger or a profound sense of loss. Many people also describe anxiety about future pregnancies, fear of the same thing happening again, or guilt, even though nothing you did caused the ectopic.

These feelings deserve acknowledgement and support. Talk to your GP if you are struggling; they can refer you to counselling or a perinatal mental health specialist. The Ectopic Pregnancy Trust (ectopic.org.uk) is the UK's leading charity for people affected by ectopic pregnancy and offers a helpline, online support groups and detailed resources written by people who have been through the same experience. You do not have to process this alone.

Future pregnancies after an ectopic

Many people go on to have healthy pregnancies after an ectopic. If both fallopian tubes remain intact, the chances of a natural conception are broadly similar to those of the general population, though the risk of another ectopic is higher than average. If one tube was removed, pregnancy through the remaining tube is still possible, and some people conceive naturally. IVF is an option if natural conception proves difficult.

The NHS and RCOG recommend an early scan, usually between six and eight weeks of any future pregnancy, to confirm the embryo has implanted in the uterus. This gives you reassurance and allows any new ectopic to be detected before it becomes an emergency. Your GP or EPU can arrange this scan; you do not need to wait for a routine booking appointment.

Give yourself time to recover physically and emotionally before trying again. There is no universal right timeline, and many people benefit from waiting until they feel ready, with support from their care team and, if helpful, from organisations like the Ectopic Pregnancy Trust.

Frequently asked questions

What are the first signs of an ectopic pregnancy?

The earliest signs are often one-sided pain in the lower abdomen or pelvis and light vaginal bleeding that is different from a normal period, usually darker in colour. Some people also feel generally unwell or notice a mild shoulder tip pain. Because these symptoms can be easy to dismiss, it is important to see a doctor as soon as possible if you suspect you might be pregnant and have any of these signs.

Can an ectopic pregnancy be mistaken for a miscarriage?

Yes. Both can cause vaginal bleeding and pelvic cramping in early pregnancy, and it is not possible to tell them apart from symptoms alone. The key difference is that an ectopic pregnancy carries a risk of internal bleeding and is a medical emergency if the fallopian tube ruptures. An ultrasound scan and blood tests are needed to distinguish between the two, so always seek medical assessment rather than waiting at home.

What is shoulder tip pain and why does it matter?

Shoulder tip pain is a dull or sharp ache felt at the very top of the shoulder, where the shoulder meets the arm. In the context of an ectopic pregnancy, it is caused by internal bleeding tracking upward and irritating the diaphragm, the muscle beneath the lungs. The diaphragm shares nerve pathways with the shoulder, so pain is felt there rather than in the abdomen. Even a mild shoulder tip pain during early pregnancy is a significant warning sign and means you should seek emergency care right away.

When should I call 999 for a suspected ectopic pregnancy?

Call 999 immediately if you have sudden, severe or worsening pain in the abdomen or pelvis, shoulder tip pain, dizziness, feeling faint, or you feel very unwell. These are signs that internal bleeding may be occurring. Do not wait to see if symptoms improve, and do not drive yourself to hospital. An ectopic pregnancy that has caused a rupture is a life-threatening emergency and needs an ambulance.

Can you have a normal pregnancy after an ectopic?

Yes. Many people go on to have healthy pregnancies after an ectopic. Chances depend in part on whether both fallopian tubes are intact, but even with one tube removed, natural conception is possible. Your doctor will recommend an early scan around six to eight weeks in any future pregnancy to confirm the embryo has implanted in the uterus. The Ectopic Pregnancy Trust offers detailed guidance and peer support on planning a pregnancy after an ectopic.

What is the difference between ectopic pregnancy and miscarriage?

Both are early pregnancy losses, but they are medically very different. A miscarriage is the loss of a pregnancy that has implanted in the uterus. An ectopic pregnancy has implanted outside the uterus, most often in a fallopian tube. Because the tube cannot support a growing pregnancy, it can rupture and cause life-threatening internal bleeding. An ectopic always requires active medical treatment, whereas some miscarriages can be managed expectantly. If there is any doubt about which you are experiencing, seek medical assessment immediately.

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