Has anyone ever tried the pregnancy tests from the dollar store and how did it work? Did anyone have a, false negative or false positive ?

The following link will take you to the FDA website that has a listing of all such tests approved for home use. You can at least determine that it is approved for use in US. You only need enter name of test:

FDA > http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfClia/testswaived.cfm