I worked up until the day I delivered with my first two. Even went straight to the hospital from work with #2. I wanted as much time off as possible after the birth. With my third, I ended up having a scheduled c-section so I chose to make my last day the Friday before (the section was scheduled for Wednesday) so I only had to use 2 vacation days.
I really did this because he was big and I was so uncomfortable I just couldn't make the drive (35 miles one way) and do the job any more. I could barely move!! It ended up only being 1 vacation day because I went into labor on the Tuesday before the scheduled C.
mom to DD1 (17), DD2 (14) and DS (9)