I'm due my third over the next couple of weeks and will be unable to be induced using the drip or pessary due to asthma so have been informed that my only option is to be induced using a double balloon device. Does anyone else have experience of this? I'm going to start having sweeps from 40 weeks to try and avoid it but of course they may not work. I was 11 days overdue with my last, and am almost expecting the same to happen again!