Nub guesses for a friend at 13 weeks

Here are some u/s pics from my friend at 13 weeks. Any nub guesses?
Attachment 24160
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and a potty shot which i know isn't really accurate at this point

Attachment 24164

If the third pic has the nub (not an expert, so could be something else) I'd say boy!

she actually posted her own thread LOL. Possibly boy. Potty shot isnt viable at 13/6

Haha well thats good! i did refer her to come here lol