Emergency Contraception
Summary of Recommendations
LNG and UPA ECPs prevent pregnancy through preovulatory effects
(1, A)Table - World Health Organization indications for emergency contraception use
Condoms | Breakage, slippage, or incorrect use |
Combined hormonal contraceptive pills | Three or more consecutively missed pills or three days late during the first week of the cycle |
Progesterone-only contraceptive pills | Three or more hours late from usual pill use time or more than 27 h after the previous pill |
Desogestrel-only contraceptive pills | Twelve or more hours from usual pill use time o rmore than 36 h after the previous pill |
Norethisterone enanthate injection | Two or more weeks late for injection |
Depot-medroxyprogesterone acetate injection | Four or more weeks late for injection |
Combined injectable contraceptive | Seven or more days late for injection |
Cervical cap or diaphragm | Dislodgement, breakage, tearing, or early removal |
Withdrawal | Failed withdrawal |
Spermicide | Failure to melt prior to intercourse |
Fertility awareness methods | Miscalculation of abstinence period, or failure to abstain or use a barrier on the fertile days |
Intrauterine device or implant | Device expulsion |
- Sexual intercourse when no contraceptive has been used
- Sexual assault when the person was not protected by an effective contraceptive method
- Sexual intercourse where there is concern for contraceptive failure or misuse, including:
Recommendation Grading
Abbreviations
- EC: Emergency Contraception
- ECP: Emergency Contraceptive Pills
- ECPs: Emergency Contraceptive Pills
- IUD: Intrauterine Device
- LNG: Levonorgestrel
- UPA: Oral Ulipristal Acetate
Disclaimer
Overview
Title
Emergency Contraception
Authoring Organization
Society of Family Planning
Publication Month/Year
January 21, 2023
Last Updated Month/Year
December 20, 2023
Document Type
Consensus
Country of Publication
US
Document Objectives
Emergency contraception (EC) refers to several contraceptive options that can be used within a few days after unprotected or under protected intercourse or sexual assault to reduce the risk of pregnancy. Current EC options available in the United States include the copper intrauterine device (IUD), levonorgestrel (LNG) 52 mg IUD, oral LNG (such as Plan B One-Step, My Way, Take Action), and oral ulipristal acetate (UPA) (ella). These clinical recommendations review the indications, effectiveness, safety, and side effects of emergency contraceptive methods; considerations for the use of EC by specific patient populations and in specific clinical circumstances and current barriers to emergency contraceptive access. Further research is needed to evaluate the effectiveness of LNG IUDs for emergency contraceptive use; address the effects of repeated use of UPA at different times in the same menstrual cycle; assess the impact on ovulation of initiating or reinitiating different regimens of regular hormonal contraception following UPA use; and elucidate effective emergency contraceptive pill options by body mass indices or weight.
Target Patient Population
Individuals who are or who may become pregnant
Target Provider Population
OBGYNs, primary care providers and other allied care providers caring for individuals who are or who may become pregnant
Inclusion Criteria
Female, Adolescent, Adult
Health Care Settings
Ambulatory
Intended Users
Nurse, nurse practitioner, physician, physician assistant
Scope
Management
Diseases/Conditions (MeSH)
D003267 - Contraception, D003270 - Contraceptive Agents, D044363 - Contraception, Postcoital, D003281 - Contraceptives, Postcoital
Keywords
intrauterine devices, emergencies, contraception, emergency contraception, Intrauterine device, Levonorgestrel, Postcoital contraception, Ulipristal acetate
Source Citation
Salcedo J, Cleland K, Bartz D, Thompson I. Society of Family Planning Clinical Recommendation: Emergency contraception. Contraception. 2023 Jan 21:109958. doi: 10.1016/j.contraception.2023.109958. Epub ahead of print. PMID: 36693445.