my experience: i had ordered those same tests and was shamelessly poasing starting at 6 dpo, i used my last one of those on day 10 dpo and nothing. Then went to the store, got an EPT, and there it was - a beautiful BFP! Although very faint but was there. Too bad i didnt have any more of the cheapies to pee on again just to double check. But anyway thats my story. I know the cheapies are supposed to be more sensitive but they didnt work that way for me.