I was also 8 days overdue when my first was born (apparently 8 days over is the average for a first born, aren't our babies clever? ). I didn't have any pre-labour that I knew of.

I had lots of pre-labour with DS2 and he was born 5 days post-dates. So he was ever so slightly earlier than my first . I was glad he wasn't born 4 days overdue or he would have arrived on his brother's 3rd birthday!