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Starting COC after postcoital contraception

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

  • if starting hormonal contraception immediately after progestogen-only emergency contraception, condoms or avoidance of sex should be advised for 7 days (2 days for POP, 9 days for Qlaira) (1,2)
    • after taking LNG-EC (levonorgestrel (for emergency contraception)), women should be advised to start suitable hormonal contraception immediately. Women should be made aware that they must use condoms reliably or abstain from sex until contraception becomes effective
      • recommended that suitable hormonal contraception (CHC, POP, IMP or DMPA) should be quick started immediately LNG-EC with a pregnancy test 21 days later to exclude pregnancy resulting from EC failure

  • if starting hormonal contraception immediately after ulipristal acetate EC (3)
    • women should be advised to wait 5 days after taking UPA-EC (ulipristal acetate (for emergency contraception) before starting suitable hormonal contraception. Women should be made aware that they must use condoms reliably or abstain from sex during the 5 days waiting and then until their contraceptive method is effective

      • has been demonstrated that starting a desogestrel POP immediately after UPA-EC reduces the ability of the UPA-EC to delay ovulation

      • FSRH recommend that after UPA-EC, commencement of CHC, POP, IMP and DMPA be delayed for 5 days (at least 120 hours) after UPA-EC has been given - ensures that the UPA-EC is as effective as possible in preventing pregnancy resulting from the episode(s) of UPSI for which it was taken

      • pregnancy can be excluded by a urine pregnancy test taken 21 days after the last episode of UPSI

      • Time to contraceptive effectiveness when starting 120 hours after ulipristal acetate emergency contraception (UPA-EC)

Contraceptive method

Time to efficacy - Requirement for additional contraception after starting method

Combined oral contraceptive pill*

7 days

Combined vaginal ring/transdermal patch

7 days

Progestogen-only pill (traditional/desogestrel)

2 days

Progestogen-only implant or injectable

7 days

Reference:


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