It is possible to test negative for certain conditions or infections even if you are experiencing symptoms. There are several reasons why this might happen. Firstly, it is important to note that no test is 100% accurate, and false negatives can occur. Additionally, the timing of the test may affect its accuracy. If you were tested too early in the course of an infection or condition, it is possible that the levels of detectable markers were not yet high enough to yield a positive result. Another possibility is that your symptoms and light bleeding may be caused by something unrelated to the condition you were tested for. It would be advisable to consult with a healthcare professional who can evaluate your specific situation and provide further guidance. They may recommend additional tests or investigations to determine the cause of your symptoms and bleeding.