Ectopic pregnancy

Alternative Names

Symptoms

• Abnormal vaginal bleeding
• Amenorrhea
• Breast tenderness
• Low back pain
• Mild cramping on one side of the pelvis
• Nausea
• Pain in the lower abdomen or pelvic area

If the area of the abnormal pregnancy ruptures and bleeds, symptoms may get worse. They may include:

• Feeling faint or actually fainting
• Pain that is felt in the shoulder area
• Severe, sharp, and sudden pain in the lower abdomen

Internal bleeding due to a rupture may lead to shock. Shock is the first symptom of almost 20% of ectopic pregnancies.

Exams and Tests

The health care provider will do a pelvic exam, which may show tenderness in the pelvic area.

Tests that may be done include:

• Culdocentesis
• Hematocrit
• Pregnancy test
• Quantitative HCG blood test
• Transvaginal ultrasound or pregnancy ultrasound
• White blood count

A rise in quantitative HCG levels may help tell a normal (intrauterine) pregnancy from an ectopic pregnancy. Women with high levels should have a vaginal ultrasound to identify a normal pregnancy.

Other tests may be used to confirm the diagnosis, such as:

• D and C
• Laparoscopy
• Laparotomy

An ectopic pregnancy may affect the results of a serum progesterone test.

References

Jian Z, Linan C. Ectopic gestation following emergency contraception with levonorgestrel. Eur J Contracept Reprod Health Care. 2003 Dec;8(4):225-8.

Sheffer-Mimouni G, Pauzner D, Maslovitch S, Lessing JB, Gamzu R. Contraception. 2003 Apr;67(4):267-9.

Nielsen CL, Miller L. Ectopic gestation following emergency contraceptive pill administration. Contraception. 2000 Nov;62(5):275-6.

Furlong LA. Ectopic pregnancy risk when contraception fails. A review. J Reprod Med. 2002 Nov;47(11):881-5. Review.

Katz VL, Lentz GM, Lobo RA, Gershenson DM. Katz: Comprehensive Gynecology. 5th ed. Philadelphia, Pa: Mosby;2007.