Oh Teeki that's tough. I can't offer any useful advice except I know so many women who were confidently told they would give birth to big babies but when they were born they were not as big as they were supposed to be. Is there a 'limit' or deadline of days being overdue you could settle on with your midwife and the doctors? Something you feel comfortable with? And in the meantime read up on lots of positive induction stories in mental preparation?