I had my period symptoms for two weeks with no period. I also started throwing up after eating things I love. So I took a pregnancy test and the positive came up within seconds. I actually thought I did it wrong because I assume everyone had to wait 1-2 minutes for results.
With my first: I got sick every morning for 3 days straight. & could barely keep my eyes open.. so I just knew. With my second: I got big mad over nothing a couple days after my missed period, then I threw up and still ate tacos for dinner. I tested that night