An hCG level of less than 5mIU/ml is considered negative for pregnancy
, and anything above 25mIU/ml is considered positive for pregnancy but a single hCG reading is not enough information for most diagnoses. When there is a question regarding the health of the pregnancy, multiple testings of hCG done a couple of days apart give a more accurate assessment of the situation.The right course for you will be to consult your obstetrician and plan a repeat beta hCG
and ask him about the relevance of transvaginal ultrasound
or even a transabdominal ultrasound in some cases which can at least see a gestational sac
Hope this helps.