Is there a nub here?

Hi everyone. I'm 13 weeks 5 days and wondering if these pics shows a nub and if anyone can tell what bubs is?

I can't see a clear nub no, I think the pics have been cut short too x

Thank you! I had 4 people in different forums say boy to the middle pic, but I wasn't sure if if it was showing a nub or if they were the feet...

Boy in middle pic :)