wow i could so understand why you would be worried. wow. No i never had before my first born was 8.5 pound born vaginally the otehr two were smaller as i had c sections. Have you spoke with your dr about adjusting the due dates? there really is nothing i can say to bring you comfort your obviously a very healthy pregnant woman. With my third born they told me he was under weight yet eh was fine when born he was 7.8 pound.