I am due to have one very soon, and naively thought it was just a regular ultrasound. Pretty shit-scared to be honest as last smear test was extremely painful - down to a "ragged and torn cervix- which is normal after childbirth" apparently (thank you nurse, feel so much better now, not)
Can anyone tell me if it's painful? How long it lasts? why the hell it's necessary when they could just do a regular ultrasound???? 