People been asking me if I am having twins....Why? Is my belly that big to think that i am carrying twins.....

I got annoyed of one lady, saying "word of advice you should get an epidural, becausebit is really hurts" and i asked her is she have kids and she said no...and why the hell is she telling me its gonna be hurt if she haven't experience it...I am already nervous and everything don't make me more anxious about it.....