13 weeks 2 days nub theory

http://i3.photobucket.com/albums/y98...82202240_n.jpg

http://i3.photobucket.com/albums/y98...44894671_n.jpg

please take a guess!

I say girl?

Girl

I don't think I see the nub on this pics.Or at least not clear for me...maybe boy from skull shape .