Nub Pic? Gender guess please

[Colom20102018]

Good Morning All, this is the only picture I have where I believe the nub can be seen but I am not sure if this is the nub. US at 12.4. Could you please let me know what you think and guess the gender if possible? Thank you

 

[Tesh23]

Tough one but I am gonna say girl! Congrats on baby x