don't be too let down yet. although some of those tests can be done starting five days before your period, they are not that accuarate. check the box, i think they are only about 70% accurate when taken 4 days before your period. i would wait until the day that you expect your period and then test.
cheer up honey there is till hope and if not this month then next month. i do understand how hard it is to wait. i'm in the same shoes.