If you are concerned or have been contacted by a current or former partner regarding a possible STD infection, you should get tested as soon as you start to show symptoms or after about 3 months since the last time you had sexual intercourse. You can be tested for many STDs, even if you are not showing symptoms and think you are at risk. Regardless of your STD diagnosis, the most important steps you can take are to remain calm and seek advice from a professional. Some results may take longer than others, with HIV being one of the quickest, it is important to not draw any conclusions without consulting with your doctor first.