Gender question!

Br

I know I'm being crazy. But how many of you went and had an early ultrasound (around 15 weeks), been told it's a girl, then later come to find it's a boy?

Ive had two boys and two miscarriages and started thinking I couldn't have a girl for some crazy reason. I had an ultrasound at 15+2 and they say they're 99% sure girl and that 1% has me freaking out lol I'm so set on having a girl now. But would still feel so blessed either way.