angry !!

So I'm a grown ass woman! My mother just got remarried and I'm happy for her!! But I'm in college and I'm maintaining a 3.0 gpa and the man my mother just married, ( call him b) thinks I'm fucking pregnant because I came home late 1 day after school!! And it's not like it's his business anyway!! But now he's telling everyone He knows and he knows I'm a virgin... he also knows it will ruin my life if my family finds out the shit he's saying