2017 wrong ultrasound gender?

Has anyone had an ultrasound recently (2016-2017) and was told one sex but it turned out to be another? We went to an early gender ultrasound at a ultrasound imaging place at 14 weeks but the babys legs were crossed. Went back at 15 weeks and we were told girl. We're so excited but I'm not sure if I can start buying pink yet. Ive heard stories of gender changing but they were years ago before 3d and 4d ultrasounds became so advanced. I'm impatient and like to start planning right away but I keep hearing these stories 😔 The tech and was 100% sure. Gender neutral clothes are too hard to find.