I'm 16. i had my last period December 10th 2008, it lasted one week. it is usually every 30 days. give or take one day.
I had unprotected sex for the first time on January 6th 2009. REally freaked out on the stupidity of not using a condom, i took the morning after pill the next day. My period would have usually come a few days after. The Nurse said the pill can effect my menstral cycle, but i want to know how much. My period is now 11 days late. is that normal, or should i be getting concerned and taking a pregnancy test.

please help.
thanks