Sometimes if you take the test too early it will show negative, so there is still a chance, i'd test again.
u need to do another test for sure or go to ur doctors dont just assume that u r x
you can take a blood test to confirm are you or not pregnant. Good luck.
Take a test when you miss your period and if there is no period or test is neg wait a week and test again :) good luck and SSBD :)