Ectopic Pregnancy
What is Ectopic pregnancy?
Ectopic pregnancy occurs when a fertilized egg implants outside the uterus. Most ectopic pregnancies happen in the fallopian tube, where the egg gets stuck on its way to the uterus. This is sometimes called a tubal pregnancy. The fertilized egg cannot develop properly outside the uterus and the pregnancy cannot continue safely.
Ectopic pregnancy affects about 1 in 50 pregnancies in the United States. It is a serious medical condition that requires prompt treatment. The growing tissue can cause the fallopian tube to rupture, leading to internal bleeding. Early detection through blood testing and ultrasound helps prevent life-threatening complications.
An ectopic pregnancy cannot result in a healthy baby. Treatment is necessary to protect the health and fertility of the person carrying the pregnancy. With early diagnosis and treatment, most people go on to have healthy pregnancies in the future.
Symptoms
- Sharp or stabbing pain on one side of the abdomen or pelvis
- Vaginal bleeding that is lighter or heavier than a normal period
- Shoulder pain caused by internal bleeding irritating the diaphragm
- Dizziness, lightheadedness, or fainting from blood loss
- Nausea and vomiting
- Pain during bowel movements or urination
- Weakness or fatigue
- Pain on one side of the body during a pelvic exam
Some people have no symptoms in the earliest stages of ectopic pregnancy. They may only experience typical early pregnancy signs like missed periods or breast tenderness. Symptoms usually appear between weeks 4 and 12 of pregnancy. Sudden severe pain with dizziness or fainting is a medical emergency that requires immediate care.
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Causes and risk factors
Ectopic pregnancy happens when something blocks or slows the fertilized egg from moving through the fallopian tube. Damage or scarring to the fallopian tubes is the most common cause. Pelvic inflammatory disease from sexually transmitted infections like chlamydia or gonorrhea can scar the tubes. Previous pelvic or abdominal surgery, including surgery for a prior ectopic pregnancy, increases risk. Endometriosis can also cause tissue buildup that blocks the tubes.
Other risk factors include smoking, which damages the fallopian tubes and affects how they move eggs. Being over age 35 raises risk, as does getting pregnant while using an intrauterine device. Prior tubal ligation surgery or treatments to reverse it increase the chance of ectopic pregnancy. Fertility treatments like in vitro fertilization slightly raise risk as well. Some people have no known risk factors and still develop an ectopic pregnancy.
How it's diagnosed
Doctors diagnose ectopic pregnancy using blood tests and ultrasound imaging together. A blood test measures human chorionic gonadotropin, a hormone produced during pregnancy. In a healthy pregnancy, hCG levels double approximately every 48 to 72 hours in early weeks. When hCG rises more slowly than expected or fails to double appropriately, ectopic pregnancy is suspected. Serial hCG measurements taken 2 to 3 days apart help doctors track the pattern.
Rite Aid offers hCG blood testing as an add-on to help detect abnormal pregnancy development early. Your doctor will also perform a transvaginal ultrasound to look for the pregnancy location. If the ultrasound cannot locate a pregnancy in the uterus and hCG levels are elevated, ectopic pregnancy is likely. Sometimes doctors need to repeat tests over several days to confirm the diagnosis. Early detection prevents rupture and serious complications.
Treatment options
- Methotrexate medication to stop the pregnancy tissue from growing when caught early
- Laparoscopic surgery to remove the ectopic pregnancy through small incisions
- Emergency surgery if the fallopian tube has ruptured and caused internal bleeding
- Close monitoring with follow-up hCG tests to ensure treatment worked
- Iron supplements if anemia developed from blood loss
- Emotional support and counseling to process pregnancy loss
- Future pregnancy planning with your doctor after recovery
- Treatment of underlying conditions like infections that may have caused scarring
Need testing for Ectopic pregnancy? Add it to your panel.
- Simple blood draw at your nearest lab
- Results in days, not weeks
- Share results with your doctor
Frequently asked questions
The first signs often include sharp pain on one side of your lower abdomen and vaginal bleeding that differs from your normal period. Many people also experience typical early pregnancy symptoms like a missed period and breast tenderness. Some people have no symptoms until the ectopic pregnancy grows larger and causes more serious pain or bleeding.
Yes, home pregnancy tests can detect ectopic pregnancy because they measure hCG hormone. However, they cannot tell you where the pregnancy is located or if it is developing normally. You need blood tests that measure exact hCG levels and ultrasound imaging to diagnose an ectopic pregnancy. If you have a positive test with pain or unusual bleeding, contact your doctor right away.
Doctors measure hCG levels with blood tests taken 2 to 3 days apart to see how the hormone is rising. In healthy early pregnancy, hCG should double approximately every 48 to 72 hours. When levels rise more slowly or plateau, ectopic pregnancy is suspected. Your doctor combines these results with ultrasound findings to confirm the diagnosis.
No, an ectopic pregnancy cannot develop into a healthy baby and cannot be moved to the uterus. The pregnancy must be ended to protect your health and prevent life-threatening complications. Without treatment, the growing tissue can rupture the fallopian tube and cause dangerous internal bleeding. Early treatment with medication or surgery is necessary.
An untreated ectopic pregnancy will continue to grow until it causes the fallopian tube to rupture. Rupture leads to severe internal bleeding, which can be life-threatening. Warning signs of rupture include sudden severe abdominal pain, shoulder pain, dizziness, and fainting. Rupture requires emergency surgery and can result in the loss of the affected fallopian tube.
Most people can have successful pregnancies after ectopic pregnancy, especially if caught and treated early. If one fallopian tube was removed, you can still get pregnant through the other tube. About 65% of people who had an ectopic pregnancy go on to have a healthy pregnancy. Your doctor can discuss ways to reduce risk and monitor future pregnancies closely.
Most doctors recommend waiting at least 3 months after methotrexate treatment or one normal menstrual cycle after surgery. This allows your body time to heal and your hCG levels to return to zero. Your doctor will check that your hCG has dropped to confirm the ectopic pregnancy resolved completely. Follow your doctor's specific guidance based on your treatment type.
Having one ectopic pregnancy does increase your risk of having another, but most people go on to have normal pregnancies. The risk of recurrence is about 10% to 15%. Your doctor may monitor future pregnancies more closely with early ultrasounds and hCG blood tests. Treating any underlying causes like infections can help reduce your risk.
You cannot always prevent ectopic pregnancy, but you can reduce some risk factors. Get tested and treated promptly for sexually transmitted infections to prevent pelvic inflammatory disease. Quit smoking, as tobacco damages fallopian tubes. Use barrier protection during sex to lower infection risk. If you have known risk factors, talk to your doctor about early monitoring in future pregnancies.
A chemical pregnancy is a very early miscarriage that happens shortly after implantation in the uterus. The pregnancy ends before ultrasound can detect it, usually within 5 weeks. An ectopic pregnancy occurs when the fertilized egg implants outside the uterus and continues to grow. Chemical pregnancies resolve on their own, while ectopic pregnancies require medical treatment to prevent serious complications.