We've been having unprotected sex for about 7 months now. Every pregnancy test I've taken has said "negative". Were really trying up to the point where we're using Preseed. It is May 29th and my last period was on March 28th. We've had sex a couple times this month. I've had cramps, feeling dizzy from time to time, and eating more. I've taken a pregnancy test and it said negative. I've never had these feelings. Could I finally be pregnant or is it all in head? Help. Pleaseee!