Embryo implant bleeding typically lasts for 1 to 2 days, states MadeForMums.com. One of the earliest signs of pregnancy, the bleeding occurs about six to 12 days following conception.
The light bleeding is pink or brown in color and not a cause for concern. However, patients experiencing heavy bleeding , which may be accompanied by fever, chills or larger cramps, are advised to contact their physician.
After the sperm fertilizes the egg, they form an embryo, which travels to the uterus and links to the uterine lining causing bleeding - often around the same a woman would normally expect her menstrual period.