Maybe even get one box of premies. The baby could be full term, but could also be small. It is also good to even have a premie outfit for the baby too.
My niece was full term, good weight and all, but her body was small and her head was a little bigger. She needed premie diapers and clothes for about a month.
And if you never use them, you can return them (: so no harm done!
I don't think its to much. Its better to be prepared. That's what I'm doing I'm stocking up on diapers & wipes .