Being induced on Tuesday

Katarina
Hi every one ... Wanting some advise
On Tuesday I'll be 39w & 2 days and am being induced due to complications with gallstones and High blood pressure that they can't treat as I'm allergic to the medication...
I've been told how the will proceed and such like but I'm wondering what every one else's experiences have been please
.. They are using a pesiry to beguine and open my cervix and repeated until it works I guess and then will put me on a drip to start labour and brake my waters ... 
Any one have any advise ?