i had one on the 16th dec around 11am, i had constant period like pains and bloody mucus right up until midnight 17th dec then i really started getting contractions phoned my midwife at 1am got to the hospital by 2am and had my bub at 4:23am on the 18th!!

It worked for me i wasnt even quite 37 weeks but i was also 3cm dialated when she did it

i agree how rude of her they should have asked you if they could do that, my midwife did it and asked first to try and stop me from being induced on the following monday which worked for me!

Goodluck and hope it works for you