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Related & look-alikes

Pregnancy loss & early Medical emergency

Ectopic pregnancy

Also known as Tubal pregnancy, Extrauterine pregnancy. First trimester, most often found around 6 to 8 weeks.

An ectopic pregnancy has implanted outside the uterus, almost always inside a fallopian tube, which is a space that cannot stretch to hold it. It cannot be moved to the right place or carried to term, and left alone it can grow until the tube ruptures and bleeds. The saving grace is timing: caught early, it is very manageable and your fertility is usually protected. So a positive test with one-sided pain or bleeding is always a same-day matter.

Know the warning signs When to call a provider
How common
About 1 in 50 pregnancies
Roughly 1% to 2% of all pregnancies.
When
First trimester
Most are found around 6 to 8 weeks.
Urgency
Emergency
A ruptured tube bleeds internally and needs the ER now.
Outlook
Very good with prompt care
Most people who have one later have a healthy pregnancy.

This can be a medical emergency. Sudden, sharp, or severe pain low in the belly or pelvis If this happens, go to the ER or call 911 right away.

Understanding it

What is ectopic pregnancy?

In a normal pregnancy the fertilized egg travels down a fallopian tube and beds into the lining of the uterus, the one place built to hold it. An ectopic pregnancy implants before it gets there. More than 95% lodge in the tube itself, which is why you will hear it called a tubal pregnancy; more rarely it settles in an ovary, the cervix, a cesarean scar, or the abdomen.

Wherever it lands, it cannot continue, and it cannot be relocated to the uterus. A fallopian tube is thin and cannot expand, so a growing ectopic stretches it and can eventually rupture it, bleeding into the abdomen. That bleed is the danger, and the reason this is an emergency rather than a wait-and-see.

What has changed is how early we now catch it. A blood test and an ultrasound usually find an ectopic before any rupture, and when you are stable and it is caught early, a single medication can often replace surgery. When surgery is needed, it is usually keyhole, through a few small incisions.

This is also a pregnancy loss, and grief, anger, and fear all belong here. None of it is your fault. An ectopic reflects where the egg happened to implant, nothing you did, and having one does not mean you cannot carry a healthy pregnancy later.

Symptoms

What are the symptoms?

Early on it can feel like an ordinary pregnancy, or bring only light bleeding and a one-sided ache. Watch for pain and bleeding that feel out of step with a normal early pregnancy, and the sudden severe signs that mean a tube may have ruptured.

Early signs

  • Light vaginal bleeding or spotting unlike a normal period
  • Pelvic or lower belly pain, often sharper on one side
  • Cramping that comes and goes
  • The usual early pregnancy signs at first: a missed period, tender breasts, nausea

Emergency signs — call 911

  • Sudden, sharp, or severe pain low in the belly or pelvis
  • Pain at the tip of one shoulder, especially lying down
  • Feeling faint or dizzy, or passing out
  • A racing heart, cold clammy skin, or looking very pale
  • Heavy vaginal bleeding
  • A strong urge to move your bowels along with pelvic pain

Why it matters

Risks to you and baby

Tubal rupture and internal bleeding

If it grows unchecked, an ectopic can burst the tube and bleed into the abdomen. This can happen fast and cause dangerous blood loss and shock. It is why the emergency signs above matter so much.

The pregnancy cannot be saved

There is no way to move an ectopic to the uterus or carry it to term. Ending it is the only way to protect your health, and for many people that is the hardest part of the diagnosis. The grief is real even though the treatment is necessary.

Future fertility

If a tube is damaged or removed, the other tube remains, and one healthy tube is enough to conceive. Most people who have had an ectopic go on to a healthy pregnancy, though the odds of a second ectopic are higher, so the next pregnancy is scanned early.

The emotional weight

A frightening medical emergency and a pregnancy loss, at once, is a lot to carry. Support and time are part of recovery, not an afterthought.

How it's found

How is it diagnosed?

The diagnosis usually comes from two tests read together: a transvaginal ultrasound to locate the pregnancy, and blood tests tracking your pregnancy hormone over time. Early on neither alone is enough, which is why you may be asked back in a day or two.

Transvaginal ultrasound

Where the pregnancy is. The telling sign is an empty uterus when your hormone level says a pregnancy should be visible, sometimes with a mass beside the uterus.

Serial beta-hCG blood tests

Your pregnancy hormone, measured every 48 to 72 hours. It rises briskly in a healthy uterine pregnancy; a slow, flat, or erratic rise points toward an ectopic.

Discriminatory level

Above a certain hCG level (ACOG suggests up to about 3,500), a uterine pregnancy should be visible on ultrasound. An empty uterus above it is worrying for an ectopic.

Exam and vital signs

Tenderness or a mass, and signs of internal bleeding such as a fast heart rate or low blood pressure.

Often pieced together over a few days of repeat blood tests and a scan. If you arrive with signs of rupture, the workup happens at once and treatment does not wait.

Treatment

How is it managed?

Treatment ends the ectopic pregnancy to protect you. The route depends on how early it is caught, your hormone level, whether the tube has ruptured, and whether you are stable.

Treatment paths

There are two paths. Methotrexate, a medication, suits an early, unruptured ectopic when you are stable. Surgery, usually keyhole through a few small incisions, is used when the tube has ruptured, bleeding is heavy, or medication is not safe. The surgeon either removes the pregnancy and leaves the tube to heal (salpingostomy) or removes the affected tube with it (salpingectomy). A rupture may mean emergency surgery.

Medication

Methotrexate halts the pregnancy tissue so your body reabsorbs it, avoiding an operation. It works in roughly 70% to 95% of well-chosen cases, and only when you are stable, unruptured, and your hormone level is lower. If you are Rh negative, you may also need a Rho(D) immunoglobulin (RhoGAM) injection.

Monitoring

After methotrexate or tube-sparing surgery, your hCG is tracked until it is undetectable, confirming no tissue remains. A drop of at least 15% between days 4 and 7 after methotrexate shows it is working.

Can it recur?

Yes. The risk of another ectopic is about 10% after one, and more than 25% after two or more. Even so, most people who have had an ectopic go on to a healthy pregnancy, and one working tube is enough to conceive. Tell your provider early so your next pregnancy is scanned promptly to confirm it sits in the uterus.

What you can do

Can it be prevented?

  • It cannot be reliably prevented

    You do not cause an ectopic and cannot fully avoid one. What you can do is lower the risk factors within your control.

  • Protect your tubes

    Preventing and promptly treating chlamydia and gonorrhea guards against the scarring that makes an ectopic more likely.

  • Do not smoke

    Smoking around conception raises the risk, one more reason to stop before trying.

  • Flag your history early

    A prior ectopic, tubal surgery, or a pregnancy conceived with an IUD in place or through IVF all warrant an early scan the moment your test is positive.

Who is more at risk

Risk factors

A previous ectopic
The strongest risk factor, though most people who have had one still go on to a normal pregnancy.
About 10% recurrence after one, over 25% after two or more
Damaged fallopian tubes
Past pelvic inflammatory disease (often from chlamydia or gonorrhea), prior tubal or pelvic surgery, and endometriosis can scar or narrow the tubes.
Pregnancy with an IUD in place
An IUD makes pregnancy very unlikely, but if one happens with an IUD in place, it is far more likely to be ectopic.
A substantial share of the rare pregnancies conceived with an IUD in place are ectopic
Fertility treatment
IVF and other assisted reproduction raise the risk, partly through the tubal problems that led to treatment.
Smoking and older age
Cigarette smoking around conception, and maternal age over 35, both add to the risk.

Do not wait

When to call your provider or 911

  • Go to the ER or call 911 for sudden or severe belly or pelvic pain, shoulder-tip pain, feeling faint, or passing out. These can mean a ruptured tube and internal bleeding.
  • Call right away for a positive test with vaginal bleeding or one-sided pelvic pain, even mild.
  • Call early if you have a positive test and risk factors (a prior ectopic, tubal surgery, or a pregnancy conceived with an IUD or through IVF) so you can be scanned promptly.
  • If you are being watched for a pregnancy of unknown location, call if pain worsens, bleeding increases, or you feel lightheaded.
  • After methotrexate, expect some cramping, but seek care for pain that keeps worsening, heavy bleeding, or faintness.

Talking to your team

Questions to ask your provider

  • Is my pregnancy definitely ectopic, or a pregnancy of unknown location we are still watching?
  • Am I a candidate for methotrexate, or do I need surgery?
  • If I need surgery, will you try to save the tube?
  • What is my hCG, and how will we track it to zero?
  • Which symptoms mean I should come back immediately?
  • How long before I try again, and will my next pregnancy be scanned early?

Keep reading

More on ectopic pregnancy

All pregnancy guides articles

Good to Know

Ectopic pregnancy FAQs

Common questions about ectopic pregnancy, answered.

Can an ectopic pregnancy be moved into my uterus?

No. There is no procedure that transfers an ectopic into the uterus. It is the first thing many people ask, and the honest answer is that the pregnancy cannot be saved. Treatment protects your health and your future fertility.

Will I be able to get pregnant again?

Most likely, yes. One healthy fallopian tube is enough to conceive, and most people who have had an ectopic go on to a healthy pregnancy. Because your odds of a second ectopic are higher, the next pregnancy is checked early with a scan to confirm it is in the right place.

Does methotrexate mean I will still need surgery later?

Usually not, when it works, which it does in most carefully chosen cases. Follow-up blood tests confirm your hormone level is falling to zero. If it stalls or symptoms worsen, surgery may still be needed, but for many people the medication is the whole treatment.

Why so many blood tests?

Your hormone level has to fall all the way to undetectable to prove the ectopic tissue is gone. Tracking it also catches any pregnancy tissue that is quietly continuing, which could still threaten the tube.

Is the pain always severe?

Not at first. Early ectopic pain can be mild or come and go, often on one side. The trend is what matters: pain that sharpens or spreads, shoulder-tip pain, or feeling faint all mean emergency care now.

Did I do something to cause this?

No. An ectopic is about where the egg implanted, which is outside your control. It is not caused by exercise, sex, stress, lifting, or anything you did or did not do.

How soon can I try to conceive again?

Many providers suggest waiting until your hormone level is zero and you have had at least one normal cycle, sometimes a little longer after surgery or methotrexate. Ask your provider for timing, and plan for an early scan next time.

Medically Reviewed · Updated

Reviewed by Dr. Grace Lin, MD, FACOG · OB-GYN

Obstetrician-gynecologist focused on reproductive and sexual health for women: pregnancy, BV, yeast, trichomoniasis and HPV/cervical screening. Our editorial guidelines →

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