My period is late and idk if I’m pregnant or not, me and my bf are sexually active but we dont fully have sex, we just dry hump although my bf does have his thing out but I have my underwear. The reason why we do this is because we’re young to have sex, he’s bout to turn 16 and I’m bout to turn 15. Idk if cum can go through underwear and go in my vagina. I can’t get a pregnancy test because who can I trust to buy me one? Please help me