Thanks for the responses
I've tried a few natural remedies without success.
Since writing this post this morning, I have seen my ob for one last check up (he booked the ARM last week) and my cervix is high, hard and completely closed, and he said the baby's head is not as 'down' as it was last week. So the induction has been cancelled tomorrow.
I've decided to wait a few more days to see what happens, but it doesn't sound very hopeful, I must say...
Thanks for the information in any case, I appreciate it.