So my period came on the 12 of june this year and lasted 4 days... when can i take a test? Me and my fiancé had sex maybe 4 times from the 16th til now 7/4/10... please help

Was the June period about the same as what you usually have? If not, you could try a test and see if it was off due to pregnancy. Otherwise, see what happens when your period is due for July.