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The menstrual cycle includes a critical component known as the ovarian cycle, which undergoes two main phases each month—the follicular phase and the luteal phase. The follicular phase is variable and averaging around 14 days. Ovulation, triggered by a surge in luteinizing hormone (LH), marks the transition between the two phases. The second phase, the luteal phase, is relatively consistent, lasting approximately 14 days, and is marked by the activity of the corpus luteum. While a cycle length...
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Related Experiment Video

Updated: Jun 4, 2026

Auricular Point Acupressure Therapy: A Safe and Effective Treatment for Postsurgical Abortion Recovery
07:28

Auricular Point Acupressure Therapy: A Safe and Effective Treatment for Postsurgical Abortion Recovery

Published on: February 3, 2026

Ectopic pregnancy after levonorgestrel emergency contraception.

Zoltan Kozinszky1, Ragnhild Tøsse Bakken, Marit Lieng

  • 1Women and Children's Division, Department of Obstetrics and Gynecology, Oslo University Hospital, Norway. kozinszkyz@yahoo.com

Contraception
|February 12, 2011
PubMed
Summary

Levonorgestrel emergency contraceptive pills may increase ectopic pregnancy risk. Further studies are needed to confirm the causal link between levonorgestrel (LNG) and ectopic pregnancy.

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Last Updated: Jun 4, 2026

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07:28

Auricular Point Acupressure Therapy: A Safe and Effective Treatment for Postsurgical Abortion Recovery

Published on: February 3, 2026

Area of Science:

  • Reproductive Endocrinology
  • Pharmacology

Background:

  • The association between levonorgestrel (LNG) emergency contraception (EC) and ectopic pregnancy is recognized but not definitively established.
  • Ectopic pregnancy is a critical condition requiring prompt diagnosis and management.

Observation:

  • A case study details a 27-year-old woman who developed a left tubal pregnancy after taking a 1.5-mg LNG EC pill.
  • The patient experienced prolonged vaginal bleeding and abdominal pain, leading to the diagnosis of ectopic pregnancy.

Findings:

  • Levonorgestrel's potential to decrease tubal ciliary activity and motility is a proposed mechanism for increased ectopic pregnancy risk.
  • The case highlights a potential, though unproven, link between LNG EC and ectopic pregnancy.

Implications:

  • This case underscores the importance of considering ectopic pregnancy in women using LNG EC who present with relevant symptoms.
  • Further large-scale epidemiological research is essential to quantify the risk of ectopic pregnancy associated with levonorgestrel emergency contraception.