What is implantation bleeding?
Implantation bleeding is the release of a small amount of blood as the embryo implants within the wall of the uterus. Since implantation occurs 10 days post conception, implantation bleeding is usually noticed at just about the time of or slightly before the missed period. In most cases implantation bleeding involves a small amount of blood in a single instance. Implantation bleeding does not occur in the majority of pregnancies, although if it does happen, it is not a sign or symptom of a problem.
