text: It can range from 2 weeks to 3 months (standard window period for HIV) depending on the person, everyone is different and all of our bodies are different... look for signs - swollen lymphs in the neck, underarms and groin areas.  Also do not be fooled, a blood test can come back much sooner than our healthcare workers like to lead on... since I work in the field I can tell you that often the results can come back frmo the lab in 24 hours, depending on what lab it is sent too.