Does Clofert And Folivite Help In Conceiving?

hi...I am 27 years old and trying to conceive..my last periods was on 31 may 2011.I was on a medication and prescribed clofert 50 mg from the 3rd day of my periods till 7th day and also taken folivite, ebexid for a month, xtron from 17 th day of periods for 15 days. i missed my periods this month am i pregnant? or just periods r delayed?