The symptom of a failed fertilized egg implantation is vaginal bleeding, similar to a single menstrual period.
Failure of fertilization is called a biochemical pregnancy, which is also characterized by vaginal bleeding, similar to a menstrual period. The amount of bleeding varies from person to person. Some people may bleed about the same amount as a period, while others may bleed much less than a normal period.
If fertilization is successful and the sperm combines with the egg to form a fertilized egg, the human chorionic gonadotropin level will rise. If the fertilization fails, there will be no significant increase in human chorionic gonadotropin, and in most cases the pregnancy will be terminated before it can be checked.
In case of repeated failure of fertilization of the egg, it is recommended to go to the hospital for examination.