Seriously, my son moves in my belly like he has somewhere to go

nmpg15235

As if he has somewhere else to be lol.  WHAT is he and all other babies in the womb doing?

I know they stretch, suck their thumbs etc. but seriously I wonder if he's dancing at times or simply just bored and occupying himself. Do babies just randomly move around for no reason? 

*Not complaining, I love every minute of it. I'm just curious as to why they move so much...what exactly theyre doing.