20 week scan is this a boy?

[baby2010x]

This is a picture of my scan taken at 20+2
I've been told twice its a boy, but what do you think?

I'm feeling a bit paranoid incase it's wrong as I've purchased quite a few boys clothes etc.

https://i4.photobucket.com/albums/y128/NFFC_1865/null_zpsec061350.jpg

 

[baby2010x]

And here's another one.

https://i4.photobucket.com/albums/y128/NFFC_1865/null_zpsef1984d0.jpg

 

[sfish]

I think if it confirmed boy he will be hun boys are easy to tell x

 

[baby2010x]

Could I ask what you think?

Also I'm not very good at the 'nub' theory so if anyone could point it out on my scan pic? X

 

[sfish]

Id say boy based on skull x

 

[hollymomabear]

Id say its a boy by the first pic. Looks like there is certainly something popping out between the legs I cant really tell by the 2nd pic though.

 

[capegirl7]

Nub theory isn't reliable at 20 weeks. You would need a potty shot