my periods were on 13th july 2013 den i had unprotected sex on 15th july den i got full normal periods on 26th of july so i was expecting my periods on 26th of aug bt still on 5th of oct i have no periods even 1 have gone through home pregnancy test 2 times both come negative,the test were taken 7 days earlier so can i be pregnant. i wanted to know wht should i do to get my periods as soon as possible