pregnant teen in public

literally wherever I go that's in public, since my belly is so huge and I'm only 17, people stare and give me looks allllll the time. some people even have the balls to ask me how old i am!!! like seriously??! like you need to know??? anyway, I seriously need some advice from y'all on what to do or how to handle it when it happens....thanks so much!! :):) :):)