There is no clinical term for a fertilized egg; it is considered to be a fertilized egg, which is usually formed 1-3 days after sexual intercourse. Usually, after a man ejaculates in a woman’s vagina, the sperm enters the woman’s body and combines with the egg to form a fertilized egg. Usually it takes some time for the fertilized egg to form, which is mainly related to the speed at which the egg is released and the sperm enters the fallopian tube, and it may form about 1 day or 3 days after sexual intercourse. For women with fertility requirements, they should take rest after sex, avoid strenuous exercise, and raise their hips appropriately to help increase the chances of successful conception. Since a number of factors can affect the quality of sperm, egg or fertilized egg, those with fertility needs should start preparing for pregnancy three months in advance, which can also improve the chances of conception. If you want to know whether you are pregnant or not, you can use early pregnancy test paper after sex or about 10 days after menstruation, or go to the doctor for a blood test. For those who do not want to have children, they need to use contraception when having sex.