Does pregnancy test kit show positive result even after 2 mth of miscarriage?

Very unlikely: A positive pregnancy test 2 months after a miscarriage is more likely to be from a new pregnancy. However it is possible to be positive 2 months after a miscarriage if the miscarriage didn't pass all the pregnancy tissue, and that tissue is still making pregnancy hormone. In this situation i order several blood pregnancy tests in a row to see if the number is rising and get an ultrasound.