There are variations in the recommendations for the age to begin getting a mammogram as well as the frequency that the mammogram should be repeated. You can ask your personal physician for his recommendation for you. However, don't do like I did. Don't put it off for two years when your doctor tells you that it is time to get a baseline mammogram.
Here is a link about Mammogram Recommendation. Also here is a link that includes lots of information about all kinds of breast cancer screening.
If you are 40 or older. Do it. Schedule your mammogram. :) If you are younger than 40, and if you have a higher than average risk of breast cancer, talk to your physician about his recommendation for your screening.