Late period please help me

Ch

I always have unprotected sex with my boyfriend and now I'm 9 days late of my period but I tested the sugar, bleach and toothpaste pregnancy test and it was all negative. I'm really freaking out because I'm a high school so I really think I shouldn't be pregnant. I haven't buy the pregnancy test with that red lines because I'm scared they'll judge me. Idk what to do and I feel I'm hopeless. Please help me.