· implantation is an early event in the human reproductive process, marking the establishment of a pregnancy. · implantation , on the other hand, is the process by which the embryo enters the endometrium (the layer that lines the uterus internally) in order to form the placenta and thus be able to nourish and grow during pregnancy. · implantation is the process of the fertilized egg burrowing into the lining of the uterus , which signals to your body that its time to build a placenta, develop an embryo and connect it all together with a blood supply. This occurs about 10 days after you ovulate and marks the beginning of pregnancy. But some subtle symptoms can occur. · implantation is when a fertilized egg attaches itself to the uterine wall. It involves the developing embryo attaching itself to the uterine wall. This typically occurs six to 12 days after having unprotected sex. · pregnancy begins when the fertilized egg implants in the uterine lining. The process is not intense or painful, so you may not notice when implantation happens. [3] an implanted embryo is detected by the presence of increased levels of human. The term implantation is used to describe process of attachment and invasion of the uterus endometrium by the blastocyst (conceptus) in placental animals. Implantation , also known as nidation, [1] is the stage in the mammalian embryonic development in which the blastocyst hatches, attaches, adheres, and invades into the endometrium of the females uterus. [2] implantation is the first stage of gestation, and, when successful, the female is considered to be pregnant. · implantation is an essential early stage of conception when cells attach to the uterine wall. Implantation happens after fertilization, which is when sperm meets egg. · implantation is when a fertilized egg attaches to the uterine lining in early pregnancy. Implantation is when an embryo burrows deep into the lining of the uterus , where it can then begin to grow. Signs of implantation include bleeding, cramps, discharge, and breast tenderness. Heres what to know about implantation and how long after fertilization it occurs.