hi twinkle.. i think it was just that the position of the babys head meant that my cervix was pointing sort of backwards towards my bum so they almost had to get around the babys head to get to the cervix. I don't normally have a problem with smears and they do say the position of your cervix can change. It was a bit uncomfortable her trying to find my cervix but when she did she said it was completely closed (which it remained to be for at least another week!)
I was a bit scared as i had heard it can hurt too although some of my friends had sweeps and said it wasn't painful at all, and others said it was a bit uncomfortable.
My only advice would be try not to rush things no matter how desparate you are to get things going. I was due on the 8th, went in for induction of the 15th (so only 7 days over) and the induction took a couple of days to get me going so i ended up having her on the 18th. Even the 18th was only 10 days overdue so i am deffo going to ask to be left a bit longer this time for induction and maybe try and go in at about 10 days over. i reckon a few extra days of waiting could have done the trick or even sped up the induction process if i was a few days further on.
anyway, good luck... you will be fine whatever happens and you will probably surprise yourself how brave you are for the sweep. I always find the waiting and worry before so much worse than the actual thing you're waiting for! x x x