gender scan confusion

K
Hi just looking on opinions weather I should book for a private scan. 
I had my 20 week scan 4 days ago and the lady doing the scan said she's 80% sure my baby is a GIRL 💖 well today I've been looking at my scan picture smiling at them as you do and I noticed this that I've circled in red what is it?? Baby isn't sat with legs open so I don't know help please What do you girls think thanks 

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors