I got home from the office at 8pm at my 37th week and my daughter was born the next day. I had planned to work until the end of the 38th week. It depends on your job and how long you plan to take off (as well as the boredom factor which I am not good at), but I am full blown career woman so needed to minimize my time off work and take most of it with the baby, hence my decision to push it to the wire. However, some words of advice on making this decision. Find out if your mother was early, on time or late. It seems to run in the family. Only after I gave birth at 37 weeks did my mother exclaim "oh you were all early". If your mother ran late with all her pregnancies that increases the chance you will be late (no guarantee, but seems to be more likely). If you are planning to push is later, be organized! I recognize many of the stories about not having enough babygrows, emergency formula, nursing bra, nappies, pads...you name it, we only had some baby grows, a car seat and crib (not put together), so it was a scramble, largely conducted by a clueless husband with me giving directions from the hospital.