Possibly wrong gender scan

Sandra • Beauty enthusiast💅🏼💄Mommy of 3 Boys;💙
So I'm 19 weeks and 1 day, I found out I'm having a boy. Just found out last week on Friday. 
I want to officially start buying stuff for my baby but I've had a gut feeling from the beginning that's it been a girl. Is there any way they come out wrong? It's happend in my family twice lol and I don't want that happening with me 

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