Help ?

So Around Sunday, April 8 I Had Unprotected Sex. I'm Not Sure If He Pulled Out Or Not, But <a href="">Eve</a> Said I Wasn't Fertile Until 8 or 9 Days (At The Time) But 5 Today. Ever Since That Night, These Past Days I've Been Having Nausea But No Vomiting Every Morning, Headaches, Little Cramping( That Could Just Be Ovulation), And Terrible Mood Swings ( Crying, Mad, Sad, Happy, And Repeat ). What I'm Wondering Is When The Time Is Right Should I Test ? Is It Too Early ? The Nausea Is Killing Me.