My sister had 3 different scans by 3 different people and they all told her she was definitely having a girl. She decorated the nursery with a fairly girly design and received lots of baby girl clothes from friends and family etc. The name was picked out too.
She’s just given birth 2 hours ago and has had a baby boy. He must have had his bits tucked well away during the scans. She’s obviously still very happy and overjoyed with him but I think she’s shell shocked as she felt like she was bonding with a daughter when he was still inside her.
I’ll definitely be leaving it for a surprise when I have one as even though this outcome must be very rare, it just goes to show they don’t always get it right