Gender scan error?

Amanda

I did an out of pocket gender scan at 16 weeks. I was told it was a girl. I just did my anatomy scan at 20 weeks and this scan says male. Was very surprised and confused. I have 2 girls and was so praying for a boy this time around. But now I am worried and scared to be too excited. What if there is another change? This time I actually saw the penis and testes- they don’t give pictures. Has this change happened to anybody else?