###Human: My home pregnancy test is positive but ultrasound shows no pregnancy. Am I pregnant? ###Assistant: Hello. I have read the description of your problem. There can be three explanations for this. 1. Either it is an evaporation line (if have you have checked it very late than the time mentioned to check on the kit which is a false positive result). 2. Or this could be a very early stage of pregnancy where the levels are not sufficient enough to be detected in urine so gives a faint positive test, obviously at this stage usually the pregnancy may or may not be detected on USG (ultrasound). 3. Or the third possibility is that this is a very early pregnancy which is failing. If you could give a little bit more details about your previous menstrual cycles, the date of your last periods, and when the scan is done, it could have helped to narrow down the possibility. You can check for your blood levels of Beta hCG (human chorionic gonadotropin) hormone to check if you were pregnant or not. I hope this helps. Serum beta hCG level.