Help me PLEASE!!!! preferably girls only?

So i was supposed to get my period today but i didnt. and im freaking out. i masturbate with a external vibrator so i doubt sperm got on it. plus its under the cabinet and i wash it before i use it, so serioudly doubt my dads sperm got on it. but maybe i'll get it later tonight idk but i CANT take a pregnancy test. so please help and if i get my period tomorro is that bad if its one or maybe two days late? please respond