@Rhonda130 depending on how you've set your listing up guests either get the address immediately upon booking, or after the 48 cancellation period has passed.
To check how you're set up go into your listing and click on location. You can change whether the map location is the general area or specific (go for general if you're concerned about potential guests knowing your actual location). There is also a box right down the bottom titled "Visibility for booked guests". If you tick this then guests don't get your actual address until after free cancellation period has passed.
From experience, so many of my guests have not paid attention to my address that I now remind them of the street number and the apartment number in the check in message I send to them a couple of days before check in.