DS1 was too days overdue (based on my dates, but once he was born his skin was very dry and his nails long, so more than likely it was actually a bit more than that). I had no signs of pre-labour so when labour started it was very unexpected (and for the first 2 hours I thought I just had a tummy bug LOL!).

DS2 was 3 1/2 weeks early so having one late doesn't mean subsequent babies will be.