8 Weeks, with a round belly?

Raye
I am exactly 8 weeks today, and people keep asking me if im close to my due date because I'm already so big. I was overweight already before pregnancy. I'm relieved that finally i have an excuse to have this big belly, but im sick of having to explain that I'm only 8 weeks, and this is just my belly. How should i handle inquiring passersby or acquaintances?