Then, the process of becoming pregnant takes several days -- the fertilized egg (now called a blastocyst) has only just begun its long journey. Once the egg is fertilized, it now has to travel all the way up into the uterus for implantation to take place. As the blastocyst makes this journey, it will continue to grow in size. At the same time, its cells will continue to divide and reproduce.
gravitational field - a field of force surrounding a body of finite mass. field of force, force field, field - the space around a radiating body within which its electromagnetic oscillations can exert force on another similar body not in contact with it.
Magnetic field - Definitions, units, and measurement. 1  Magnetic flux density. 2  Magnetic field. 3  Magnetic field intensity. 4  Magnetic field strength. 5  Magnetic field. 6  Magnetizing field. 7  The magnetic field can be defined in several equivalent ways based on the effects it has on its environment.