Usually, the egg will be implanted between 6 to 12 days of egg retrieval. After five days of embryo transfer, the egg reaches blastocyst stage. For accuracy, you need to county the day of retrieval as day 0.
A motor car engine is an Internal Combustion Engine (ICE). Energy is created by burning either diesel or petrol in a combustion chamber. In such an engine, the energy is transferred from the pistons moving up and down at high speeds. This up-down motion is converted to a rotary motion through the crankshaft and axle.
Your body does overreact as an immobilization response. Ice tones down the inflammatory response which prevents unnecessary excess swelling. The answer that ice increases circulation is correct but it also means you have left it on too long. That's why they never recommend leaving it on for too long as the body initiates the hunter reaction to try to prevent frostbite. So ice doesn't actually heal injury but rather prevents extra damage.