Emergency Contraception Options Explained
How levonorgestrel pills, ulipristal acetate, and copper IUDs work after unprotected sex.
6 min read · Published May 18, 2026 · Reference: WHO emergency contraception fact sheet
Medically Reviewed By Aegis Education Editorial Team · Medical writers & educators
Emergency contraception reduces pregnancy risk after unprotected intercourse or contraceptive failure. Levonorgestrel pills are most effective within 72 hours; ulipristal acetate extends efficacy to 120 hours in many protocols.
Emergency pills primarily delay or inhibit ovulation—they are not abortion medications and do not terminate established pregnancies. A copper intrauterine device inserted within five days provides the highest efficacy and ongoing contraception.
Heavier menstrual bleeding or cycle shifts can occur temporarily. If a period is more than a week late, take a pregnancy test.
Repeated reliance on emergency pills suggests reviewing ongoing contraceptive plans with a clinician. Accessibility and cost barriers should not delay time-sensitive use.
Clinical Deep-Dive
Interactive companion for General / systemic. Educational only — not a diagnosis.
Understanding the relevant body system helps you notice baseline changes early and communicate clearly with a clinician.
Normal range (60–100 bpm)
Normal range (12–20 /min)
Normal range (36.1–37.2 °C)
Normal range (95–100 %)
Physical symptom checklist
- Persistent pelvic/abdominal painPossible infection or structural concern
- Unusual discharge or odorPossible infection (BV, STI, UTI)
- Skin pimples / rashes in areaIrritation, folliculitis, or infection
- Fever with urinary symptomsPossible kidney involvement
- Irregular cycle / missed periodHormonal, stress, or pregnancy related
Medical disclaimer
This article is original educational content from Aegis Education. It is not medical advice, diagnosis, or treatment. For personal health concerns, contact a licensed healthcare professional or local emergency services when urgent care is needed.