ACTUALLY YOU CAN HAVE A PERIOD WHEN YOU ARE PREGGO, MY MOTHER-IN-LAW HAD A PERIOD ALL THREW HER PREGNANCY ITS JUST THAT SOME GIRLS ARE DIFFERENT THAN OTHERS YOU KNOW? I AM NOT TRYING TO BE MEAN TO THAT OTHER GIRL OR ANYTHING,BUT ON THAT TEST WAIT A WHILE THEN TAKE IT AGAIN. MAYBE IT WAS JUST TO SOON. I TOOK 4 PREGNANCY TEST BEFORE IT CAME OUT POSTITIVE. SO DONT WORRY ABOUT IT. LIKE I SAID JUST WAIT A WHILE AND THEN TAKE ANOTHER ONE AND THEN TELL ME WHAT HAPPENS WELL GOOD LUCK !!!!!!!!!!!!!!!