i was administered Pregnyl 5000 injection for assisting in follicle rupturing on 28th december 2009. Once the follicles ruptured, as recorded by my sonographies, i have been having unprotected sex with my partner on the ''good" days. My periods are due on 18th of this month. How soon can i test for pregnancy? do i need to wait till a week after my periods? can someone advise on this?

thanks :-D