My SIL was told she was a having a boy on two separate ultrasounds and so they were very suprised when out popped my niece.......this was only last year.

We decided to keep it as a surprise and at the checkup after my 20 week ultrasound my midwife told me of a birth in the hospital that week of a surprise boy, after the mum kitted out the nursery & and a cupboard full of clothes in pink....also last year