Bed bugs breed rapidly. It only takes ten days for eggs to hatch after they are laid. Baby bed bugs go through a few molts in five or six weeks before they become breeding adults.
There is no such thing as a bed bug repellent. Bed bugs simply hide in tiny cracks and crevices all over your home so the insecticide never comes into contact with them. When the fumes clear, the bugs come back out of hiding.
If you are serious about how to get rid of bed bugs as quickly as possible, you and your family will need to go through extensive preparations before the exterminators arrive with their equipment.
Vacuum bare mattresses and box springs. You may have to trash your mattress and/or box spring if they have many tears or rips. Ask your exterminator if the mattresses can be saved.