| Copper and LNG IUDs | UPA | LNG |
Efficacy | Most effective EC | Optimal oral EC | Preferred oral EC if UPA not available |
Preferred for | Women who desire the most effective EC | Women at high risk of pregnancy who desire oral EC | Women at low risk of pregnancy who desire oral EC |
Women who desire the most effective immediate ongoing contraception | Women more concerned about pregnancy from recent UPI than future sex | Women more concerned about preventing future pregnancy |
Women who do not wish to return for contraceptive visit | Women likely to return to initiate contraception | Women unlikely to return for future contraceptive start |
Approach to starting ongoing contraception |
Barrier methods* | N/A | Immediate start | Immediate start |
Pericoital contraceptives¶ | N/A | Immediate start | Immediate start |
Short-acting hormonal contraceptivesΔ | N/A | Provide prescription for patient to start 5 days after UPA dose◊ | Immediate start |
N/A | Use backup contraception for an additional 7 days from contraceptive start | Use backup contraception for an additional 7 days |
Long-acting reversible contraceptives§ | Already in place | Schedule repeat visit for LNG IUD or etonogestrel implant 5 days from UPA ingestion | Immediate insertion of LNG IUD or etonogestrel implant |
N/A | Use backup contraception for an additional 7 days from contraceptive start | Use backup contraception for an additional 7 days |
Future care | N/A | Check urine pregnancy test in 2 to 4 weeks | Check urine pregnancy test in 2 to 4 weeks |