Could i be pregnant?

i am sexually active . i have sex with my boyfriend second week around the expected time of my period but i never get it . i took a test and i come out negative but i still havent gotten my length . whats happening ? you may not hold enough hormone that the theory test uses to see if you are pregnant wait a week or two and try again or dance see planned parent hood, i could just be stress, any time you enjoy unprotected sex you can get pregnant
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