Because I’m one of those women who doesn’t effing know or care when my last menstrual period was. I don’t keep track of those things because it doesn’t effing matter to me. I’m so sick of going to the doctor for something completely unrelated and they treat me like a number and ask me these stupid unrelated questions. And yes they ask this question every single time you go to the doctor regardless of why you’re there. If they want to know whether or not I’m pregnant why don’t they just ask me if I’m pregnant or tell me to pee in a cup. They often make me pee in a cup anyway, I don’t effing care. Stop asking me when my last period was.