ok so i am 16 and have had sex with out a condom. more then once i am not on BC pills i got off of them like 9 months ago my periods have been like a week late before but never this long i have taken tests and everything came up negitive? i have even had a blood test. i dont no what is wrong i am now almost three months late and yesterday i thought maybe i might have started but it was a light pink kinda brown discharge it smelled a little but it went away in a day... can someone please tell me what is wrong could i still be prgeo and not no it or what? thanks for everything and anything will help i would just like to no..