Hi I'm 17, my last period date is 16/12/2012 .and I have been in a intercourse on the 12/01/2013, we did not use protection and he took it out before he came and ejaculated on my stomach. Today is the 16/01/2013, and i havent gotten my periods . and I am wondering if I will turn out pregnant , and I do know that even if he doesn't ejaculate on me , he's precome can still contain sperm. I really need help and when can I find out that I am pregnant like how soon can I do a blood test or a home test?