Trying to avoid induction, any advice appreciated!!

Laura
I'm 36 weeks today with Di/Di boys and although I'm glad to have made it this far I'm desperate to avoid induction next Saturday, which means these boys have 1 week to arrive!
I'm looking for and safe natural induction methods that may help that along!!
I've got a gym ball that I'm bouncing on every day and I'm having about as much sex as I can manage, been using evening primrose oil and starflower oil since 34 weeks and I walk just over 2 miles a day!!
Nothing would make me use castor oil again and pineapple is the devils food!!
Please ladies tell me what worked for you!!