What should you know about emergency contraception after ovulation?

Ovulation is the release of an egg from an ovary. Levonorgestrel emergency contraception works mainly before ovulation by postponing that release. It does not end an established pregnancy and does not protect sex later in the cycle. It can be difficult to know the exact day of ovulation from an app or symptoms alone, so uncertainty about timing should not delay a conversation with a pharmacist or clinician.

Take emergency contraception as soon as possible after unprotected sex if it is suitable for you, while explaining when sex occurred, your cycle timing, medicines, and contraception needs. Read the product instructions and use condoms or avoid sex until reliable ongoing contraception is in place. If your period is late or unusual, take a pregnancy test and ask for clinical advice about next steps.

Seek urgent care for severe one-sided lower abdominal pain, fainting, shoulder-tip pain, or heavy bleeding, especially with a positive pregnancy test. Arrange medical advice if vomiting prevents you keeping the dose down, your period is unusually late, or you are worried about pregnancy or an infection.

How might my cycle timing affect this option? Could my medicines or health history change the choice? When should I test for pregnancy, and what ongoing contraception would suit me?