Question : Is it possible for a pregnancy test to be positive even if you are not pregnant? Pregnancy test to be positive but not pregnant Answer : Yes, it is, though it is unusual. There are two reasons. The first is if you have had a very early spontaneous miscarriage; this happens in 15 per cent of all conceptions. These very sensitive tests will diagnose pregnancy early and then you will go on a week or so later to have a normal period. The second reason for a positive test is very rare and occurs where the test is reflecting high levels of hormones which are being made from a very rare womb cancer called choriocarcinoma. Anyone who persistently has a positive test, and who is not obviously pregnant, should discuss the findings with her doctor as a matter of urgency.