Comparing people's pregnancies

Am I the only one that can't stand it when someone tries to compare their pregnancy to yours as if they're better than you? For example my sister is also pregnant exactly 6 weeks and 1 day behind me, she keeps saying how she doesn't understand that when I was at her stage I was bigger( I wasn't ) and it's irritating because even if I was I don't smoke, she's 7 months and still smokes cigarettes and mirajuana so obviously I'm going to pack on more pounds than someone smoking. And my mom does it too! Comparing her pregnancies with mine & my sisters saying things like " I could fit all my regular clothes throughout my whole pregnancy, I was still cute I didn't have that problem" 😑😒. If you compare pregnancies saying you carried high with your girl & I'm carrying low is one thing, but don't put me down. Am I the only person that's experiencing this?