12w ultrasound

hi
This is my 12w u/s. I tought that i saw a nub but an expert told me she thinks it not a nub, but then what is it or what could it be? Can anyone make a ramzi skull guess?hi

That looks like a nub possibly boy but could go either way do I'm 50/50

Maybe boy....

Thanks! Why 50/50 either way?

Looks like the nub - guessing boy :)

guessing boy

looks like a nub to me......boy

Boy

boy!!

I think boy.