I had this done on my due date (on a friday), i found it very uncomfortable as I wasn't told what the Ob was doing he said he was just 'checking' my cervix!! I was in tears! It did start my labour that night, but I spent two days in bed resting like I had read that you should do in the early stages so my son was born on the sunday. I was never told this was a way of inducing the birth. I was given a sheet of paper showing how they rupture your membranes and told I would have to come in on monday for that procedure. I felt utterly violated and lied too after that. It was my mother in law who explained to me what they had done to me, not the Ob or midwife.