Yasmin tricks your body into thinking that ovulation has already taken place; in doing so there is a very strong chance an egg will not be released during your menstrual cycle. Yasmin alters the consistency of the womb lining so that an egg can not implant itself there to grow, and thickens the cervical fluid making it tough for a sperm to entering the womb for fertilisation to take place.
Read the Patient Information Leaflet