My son's vs (???). Thoughts? :)

[psl46]

The first is the ?

The 2nd is my son

[Wanting-a-girl]

Looks like a boy and I only say that cause it's identical to mine which is a boy

[Rainbow baby]

Not sure I can see nub sorry!

[fab4]

I say girl. But there's a little shadow on the top of the nub that adds a question mark for me.