This is the process of fertilising the woman’s egg with the male’s sperm outside of the woman’s body in the laboratory. This type of treatment is used for many infertile couples. After a successful fertilisation has taken place, the embryos (fertilised eggs) are watched closely until they have developed to an appropriate stage and then they are inserted through the vagina and placed into the uterus (womb). A pregnancy test will be performed about 10 days later to see if a pregnancy is progressing.