I’m confused

Chasity • Mommy to two beautiful boys. Expecting baby #3 June 2018 & it’s a girl 💗

At 16 weeks I found out I was having a baby girl. When I saw the ultrasound I was sure it was female. At my 20 week anatomy scan it was confirmed a girl but the 20 week picture looked different from the 16 week one. I feel like they may have made a mistake. I think I see boy parts.. (first picture is 16 weeks, 2nd is 20 weeks) what do you guys think..