I had one recently, wasn’t given much info beforehand, but I read about taking pain relief so did that an hour before. They give you a big long chat explaining all the things that might go wrong 😳 then ask if you want to go ahead. The procedure is undignified and it did hurt, was like sudden sharp period cramps, but didn’t last too long. A lovely nurse will hold your hand and ask you if you have anything nice planned for the rest of the day, bit like being at the hairdresser 😆 I didn’t like looking at my innards on the screen so didn’t watch! Best to have someone else drive you home afterwards, I felt quite shaky. You will bleed a little for a few days afterwards.