Foto de stock - Emergency contraception Woman holding a packet containing an emergency contraceptive pill The morning-after pill may be taken in the first 72 hours after unprotected sex It contains a synthetic hormone known as levonorgestrel that disrupts ovulation and also may prevent the fertilised egg from implanting in the uterus

Imagen: Emergency contraception  Woman holding a packet containing an emergency contraceptive pill  The morning-after pill may be taken in the first 72 hours after.