These cells are called a blastomere. As the blastomere continues to divide, a solid ball of cells is formed, called a morula. The gradual accumulation of fluid within the morula results in the formation of a blastocyst, which is very small. The blastocyst lies free in the uterine cavity as it continues to grow and to develop. The cells burrow into the lining of the uterus.
Some women can tell when they ovulate.
They may feel mild cramping or pain, or they may have an increased vaginal discharge. Occasionally at the time of implantation of the fertilized egg into the uterine cavity, a woman may notice a small amount of bleeding. It's too early for you to notice many changes. Your breasts haven't started to enlarge and you won't be starting to show. How Your Actions Affect Your Baby's Development Exercise is an important part of life for many women.