I would give it another week, and if you haven't started your period, go purchase the EPT test. EPT has been the most reliable test I have ever used. I have never once had a false result either way.
Right now, if you are pregnant, it's still early enough that you may not have high enough levels of the pregnancy hormone to read accurately on the tests, especially the Dollar Store ones.
Good Luck! Hopefully your period will come soon.
PS- It's more likely to get false negatives than false positives, so this is why I say give it a week and try the EPT if no period has shown up. Rarely, if ever, does a test give a false positive
Last edited by ozzybug; 03-16-2009 at 10:52 AM.
Reason: Added info.